fix: bumps resolver to 3.1.4 using HTTPS for mvn central (#229)

* fix: bumps resolver to 3.1.4 using HTTPS for mvn central
* fix(travis): changes jdk8 to openjdk8

Fixes #228

Author: bartoszmajsak

.travis.yml

@@ -10,7 +10,7 @@ addons:
 
 language: java
 jdk:
-  - oraclejdk8
+  - openjdk8
 cache:
   directories:
     - $HOME/.m2

bom/pom.xml

@@ -45,7 +45,8 @@
 
     <version.shrinkwrap_core>1.2.6</version.shrinkwrap_core>
     <version.shrinkwrap_descriptors>2.0.0</version.shrinkwrap_descriptors>
-    <version.shrinkwrap_resolver>2.2.6</version.shrinkwrap_resolver>
+    <version.shrinkwrap_resolver>3.1.4</version.shrinkwrap_resolver>
+    <version.shrinkwrap_resolver>3.1.4</version.shrinkwrap_resolver>
 
     <jboss.releases.repo.url>https://repository.jboss.org/nexus/service/local/staging/deploy/maven2/
     </jboss.releases.repo.url>