diff --git a/04-static-and-config-members/b-configs/package-lock.json b/04-static-and-config-members/b-configs/package-lock.json
index fa5408f..6c67edc 100644
--- a/04-static-and-config-members/b-configs/package-lock.json
+++ b/04-static-and-config-members/b-configs/package-lock.json
@@ -3877,7 +3877,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -3895,11 +3896,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3912,15 +3915,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4023,7 +4029,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4033,6 +4040,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4045,17 +4053,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -4072,6 +4083,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4144,7 +4156,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4154,6 +4167,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4229,7 +4243,8 @@
         },
         "safe-buffer": {
           "version": "5.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4241,11 +4256,6 @@
           "bundled": true,
           "optional": true
         },
-        "semver": {
-          "version": "5.5.0",
-          "bundled": true,
-          "optional": true
-        },
         "set-blocking": {
           "version": "2.0.0",
           "bundled": true,
@@ -4259,6 +4269,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4276,6 +4287,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4314,11 +4326,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -9306,9 +9320,9 @@
       }
     },
     "semver": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
-      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA=="
+      "version": "5.7.2",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.2.tgz",
+      "integrity": "sha512-cBznnQ9KjJqU67B52RMC65CMarK2600WFnbkcaiwWq3xy/5haFJlshgnpjovMVJ+Hff49d8GEn0b87C5pDQ10g=="
     },
     "semver-diff": {
       "version": "2.1.0",
diff --git a/04-static-and-config-members/b-configs/yarn.lock b/04-static-and-config-members/b-configs/yarn.lock
index f339cc4..db19948 100644
--- a/04-static-and-config-members/b-configs/yarn.lock
+++ b/04-static-and-config-members/b-configs/yarn.lock
@@ -617,7 +617,7 @@ babel-plugin-transform-es2015-computed-properties@^6.22.0:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-destructuring@^6.23.0:
+babel-plugin-transform-es2015-destructuring@6.23.0, babel-plugin-transform-es2015-destructuring@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz#997bb1f1ab967f682d2b0876fe358d60e765c56d"
   dependencies:
@@ -864,13 +864,14 @@ babel-preset-jest@^20.0.3:
   dependencies:
     babel-plugin-jest-hoist "^20.0.3"
 
-babel-preset-react-app@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/babel-preset-react-app/-/babel-preset-react-app-3.1.0.tgz#d77f6061ab9d7bf4b3cdc86b7cde9ded0df03e48"
+babel-preset-react-app@^3.1.1:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/babel-preset-react-app/-/babel-preset-react-app-3.1.2.tgz#49ba3681b917c4e5c73a5249d3ef4c48fae064e2"
   dependencies:
     babel-plugin-dynamic-import-node "1.1.0"
     babel-plugin-syntax-dynamic-import "6.18.0"
     babel-plugin-transform-class-properties "6.24.1"
+    babel-plugin-transform-es2015-destructuring "6.23.0"
     babel-plugin-transform-object-rest-spread "6.26.0"
     babel-plugin-transform-react-constant-elements "6.23.0"
     babel-plugin-transform-react-jsx "6.24.1"
@@ -978,6 +979,12 @@ binary-extensions@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
 
+bindings@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
+  dependencies:
+    file-uri-to-path "1.0.0"
+
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -1248,7 +1255,7 @@ caniuse-lite@^1.0.30000748, caniuse-lite@^1.0.30000784:
 
 capture-stack-trace@^1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/capture-stack-trace/-/capture-stack-trace-1.0.0.tgz#4a6fa07399c26bba47f0b2496b4d0fb408c5550d"
+  resolved "https://registry.npmjs.org/capture-stack-trace/-/capture-stack-trace-1.0.0.tgz#4a6fa07399c26bba47f0b2496b4d0fb408c5550d"
 
 case-sensitive-paths-webpack-plugin@2.1.1:
   version "2.1.1"
@@ -1550,7 +1557,7 @@ create-ecdh@^4.0.0:
 
 create-error-class@^3.0.1:
   version "3.0.2"
-  resolved "http://registry.npmjs.org/create-error-class/-/create-error-class-3.0.2.tgz#06be7abef947a3f14a30fd610671d401bca8b7b6"
+  resolved "https://registry.npmjs.org/create-error-class/-/create-error-class-3.0.2.tgz#06be7abef947a3f14a30fd610671d401bca8b7b6"
   dependencies:
     capture-stack-trace "^1.0.0"
 
@@ -1843,9 +1850,9 @@ detect-node@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.0.3.tgz#a2033c09cc8e158d37748fbde7507832bd6ce127"
 
-detect-port-alt@1.1.3:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/detect-port-alt/-/detect-port-alt-1.1.3.tgz#a4d2f061d757a034ecf37c514260a98750f2b131"
+detect-port-alt@1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/detect-port-alt/-/detect-port-alt-1.1.6.tgz#24707deabe932d4a3cf621302027c2b266568275"
   dependencies:
     address "^1.0.1"
     debug "^2.6.0"
@@ -1948,6 +1955,10 @@ dot-prop@^3.0.0:
   dependencies:
     is-obj "^1.0.0"
 
+dotenv-expand@4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/dotenv-expand/-/dotenv-expand-4.2.0.tgz#def1f1ca5d6059d24a766e587942c21106ce1275"
+
 dotenv@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-4.0.0.tgz#864ef1379aced55ce6f95debecdce179f7a0cd1d"
@@ -2139,9 +2150,9 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
-eslint-config-react-app@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/eslint-config-react-app/-/eslint-config-react-app-2.0.1.tgz#fd0503da01ae608f0c6ae8861de084975142230e"
+eslint-config-react-app@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-react-app/-/eslint-config-react-app-2.1.0.tgz#23c909f71cbaff76b945b831d2d814b8bde169eb"
 
 eslint-import-resolver-node@^0.3.1:
   version "0.3.2"
@@ -2508,6 +2519,10 @@ file-loader@1.1.5:
     loader-utils "^1.0.2"
     schema-utils "^0.3.0"
 
+file-uri-to-path@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
+
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
@@ -2655,13 +2670,6 @@ fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
 
-fsevents@1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.2.tgz#3282b713fb3ad80ede0e9fcf4611b5aa6fc033f4"
-  dependencies:
-    nan "^2.3.0"
-    node-pre-gyp "^0.6.36"
-
 fsevents@^1.0.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
@@ -2669,6 +2677,13 @@ fsevents@^1.0.0:
     nan "^2.3.0"
     node-pre-gyp "^0.6.39"
 
+fsevents@^1.1.3:
+  version "1.2.13"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.13.tgz#f325cb0455592428bcf11b383370ef70e3bfcc38"
+  dependencies:
+    bindings "^1.5.0"
+    nan "^2.12.1"
+
 fstream-ignore@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
@@ -3690,6 +3705,10 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
+"js-tokens@^3.0.0 || ^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+
 js-yaml@^3.4.3, js-yaml@^3.7.0, js-yaml@^3.9.1:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.10.0.tgz#2e78441646bd4682e963f22b6e92823c309c62dc"
@@ -3967,6 +3986,12 @@ loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1:
   dependencies:
     js-tokens "^3.0.0"
 
+loose-envify@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
+  dependencies:
+    js-tokens "^3.0.0 || ^4.0.0"
+
 loud-rejection@^1.0.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
@@ -4172,6 +4197,10 @@ mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
+nan@^2.12.1:
+  version "2.17.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.17.0.tgz#c0150a2368a182f033e9aa5195ec76ea41a199cb"
+
 nan@^2.3.0:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
@@ -4248,7 +4277,7 @@ node-notifier@^5.0.2:
     shellwords "^0.1.0"
     which "^1.2.12"
 
-node-pre-gyp@^0.6.36, node-pre-gyp@^0.6.39:
+node-pre-gyp@^0.6.39:
   version "0.6.39"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
   dependencies:
@@ -4385,7 +4414,13 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-opn@5.1.0, opn@^5.1.0:
+opn@5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/opn/-/opn-5.2.0.tgz#71fdf934d6827d676cecbea1531f95d354641225"
+  dependencies:
+    is-wsl "^1.1.0"
+
+opn@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/opn/-/opn-5.1.0.tgz#72ce2306a17dbea58ff1041853352b4a8fc77519"
   dependencies:
@@ -4984,7 +5019,7 @@ promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
-prop-types@^15.5.10, prop-types@^15.6.0:
+prop-types@^15.5.10:
   version "15.6.0"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.0.tgz#ceaf083022fc46b4a35f69e13ef75aed0d639856"
   dependencies:
@@ -4992,6 +5027,14 @@ prop-types@^15.5.10, prop-types@^15.6.0:
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
+prop-types@^15.6.2:
+  version "15.8.1"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.8.1.tgz#67d87bf1a694f48435cf332c24af10214a3140b5"
+  dependencies:
+    loose-envify "^1.4.0"
+    object-assign "^4.1.1"
+    react-is "^16.13.1"
+
 proxy-addr@~2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.2.tgz#6571504f47bb988ec8180253f85dd7e14952bdec"
@@ -5108,59 +5151,64 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.1.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
-react-dev-utils@^4.2.1:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/react-dev-utils/-/react-dev-utils-4.2.1.tgz#9f2763e7bafa1a1b9c52254d2a479deec280f111"
+react-dev-utils@^5.0.1:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/react-dev-utils/-/react-dev-utils-5.0.3.tgz#92f97668f03deb09d7fa11ea288832a8c756e35e"
   dependencies:
     address "1.0.3"
     babel-code-frame "6.26.0"
     chalk "1.1.3"
     cross-spawn "5.1.0"
-    detect-port-alt "1.1.3"
+    detect-port-alt "1.1.6"
     escape-string-regexp "1.0.5"
     filesize "3.5.11"
     global-modules "1.0.0"
     gzip-size "3.0.0"
     inquirer "3.3.0"
     is-root "1.0.0"
-    opn "5.1.0"
-    react-error-overlay "^3.0.0"
+    opn "5.2.0"
+    react-error-overlay "^4.0.1"
     recursive-readdir "2.2.1"
     shell-quote "1.6.1"
-    sockjs-client "1.1.4"
+    sockjs-client "1.1.5"
     strip-ansi "3.0.1"
     text-table "0.2.0"
 
-react-dom@16.2.0:
-  version "16.2.0"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.2.0.tgz#69003178601c0ca19b709b33a83369fe6124c044"
+react-dom@^16.2.0:
+  version "16.14.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.14.0.tgz#7ad838ec29a777fb3c75c3a190f661cf92ab8b89"
   dependencies:
-    fbjs "^0.8.16"
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
-    prop-types "^15.6.0"
+    prop-types "^15.6.2"
+    scheduler "^0.19.1"
 
-react-error-overlay@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-3.0.0.tgz#c2bc8f4d91f1375b3dad6d75265d51cd5eeaf655"
+react-error-overlay@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-4.0.1.tgz#417addb0814a90f3a7082eacba7cee588d00da89"
+
+react-is@^16.13.1:
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
 
-react-scripts@1.0.17:
-  version "1.0.17"
-  resolved "https://registry.yarnpkg.com/react-scripts/-/react-scripts-1.0.17.tgz#c30029123b561a060227af4d7797d50a222d3fbf"
+react-scripts@1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/react-scripts/-/react-scripts-1.1.4.tgz#d5c230e707918d6dd2d06f303b10f5222d017c88"
   dependencies:
     autoprefixer "7.1.6"
     babel-core "6.26.0"
     babel-eslint "7.2.3"
     babel-jest "20.0.3"
     babel-loader "7.1.2"
-    babel-preset-react-app "^3.1.0"
+    babel-preset-react-app "^3.1.1"
     babel-runtime "6.26.0"
     case-sensitive-paths-webpack-plugin "2.1.1"
     chalk "1.1.3"
     css-loader "0.28.7"
     dotenv "4.0.0"
+    dotenv-expand "4.2.0"
     eslint "4.10.0"
-    eslint-config-react-app "^2.0.1"
+    eslint-config-react-app "^2.1.0"
     eslint-loader "1.9.0"
     eslint-plugin-flowtype "2.39.1"
     eslint-plugin-import "2.8.0"
@@ -5176,7 +5224,8 @@ react-scripts@1.0.17:
     postcss-loader "2.0.8"
     promise "8.0.1"
     raf "3.4.0"
-    react-dev-utils "^4.2.1"
+    react-dev-utils "^5.0.1"
+    resolve "1.6.0"
     style-loader "0.19.0"
     sw-precache-webpack-plugin "0.11.4"
     url-loader "0.6.2"
@@ -5185,20 +5234,19 @@ react-scripts@1.0.17:
     webpack-manifest-plugin "1.3.2"
     whatwg-fetch "2.0.3"
   optionalDependencies:
-    fsevents "1.1.2"
+    fsevents "^1.1.3"
 
-react@16.2.0:
-  version "16.2.0"
-  resolved "https://registry.yarnpkg.com/react/-/react-16.2.0.tgz#a31bd2dab89bff65d42134fa187f24d054c273ba"
+react@^16.2.0:
+  version "16.14.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.14.0.tgz#94d776ddd0aaa37da3eda8fc5b6b18a4c9a3114d"
   dependencies:
-    fbjs "^0.8.16"
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
-    prop-types "^15.6.0"
+    prop-types "^15.6.2"
 
 read-all-stream@^3.0.0:
   version "3.1.0"
-  resolved "http://registry.npmjs.org/read-all-stream/-/read-all-stream-3.1.0.tgz#35c3e177f2078ef789ee4bfafa4373074eaef4fa"
+  resolved "https://registry.npmjs.org/read-all-stream/-/read-all-stream-3.1.0.tgz#35c3e177f2078ef789ee4bfafa4373074eaef4fa"
   dependencies:
     pinkie-promise "^2.0.0"
     readable-stream "^2.0.0"
@@ -5485,6 +5533,12 @@ resolve@1.1.7:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
 
+resolve@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.6.0.tgz#0fbd21278b27b4004481c395349e7aba60a9ff5c"
+  dependencies:
+    path-parse "^1.0.5"
+
 resolve@^1.3.2, resolve@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
@@ -5553,6 +5607,13 @@ sax@^1.2.1, sax@~1.2.1:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
+scheduler@^0.19.1:
+  version "0.19.1"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.19.1.tgz#4f3e2ed2c1a7d65681f4c854fa8c5a1ccb40f196"
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+
 schema-utils@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.3.0.tgz#f5877222ce3e931edae039f17eb3716e7137f8cf"
@@ -5576,8 +5637,8 @@ semver-diff@^2.0.0:
     semver "^5.0.3"
 
 "semver@2 || 3 || 4 || 5", semver@^5.0.3, semver@^5.1.0, semver@^5.3.0:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
+  version "5.7.2"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.2.tgz#48d55db737c3287cd4835e17fa13feace1c41ef8"
 
 send@0.16.1:
   version "0.16.1"
@@ -5713,6 +5774,17 @@ sockjs-client@1.1.4:
     json3 "^3.3.2"
     url-parse "^1.1.8"
 
+sockjs-client@1.1.5:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/sockjs-client/-/sockjs-client-1.1.5.tgz#1bb7c0f7222c40f42adf14f4442cbd1269771a83"
+  dependencies:
+    debug "^2.6.6"
+    eventsource "0.1.6"
+    faye-websocket "~0.11.0"
+    inherits "^2.0.1"
+    json3 "^3.3.2"
+    url-parse "^1.1.8"
+
 sockjs@0.3.18:
   version "0.3.18"
   resolved "https://registry.yarnpkg.com/sockjs/-/sockjs-0.3.18.tgz#d9b289316ca7df77595ef299e075f0f937eb4207"