update CHANGELOG a bit, add note to docs about how goiardi needs go 1.7+

Author: ctdk

CHANGELOG

@@ -11,6 +11,11 @@
 * Start using contexts with requests. This does mean that goiardi will require
   at least go 1.7. (As of 0.11.3 goiardi only supported go 1.7+, but it was
   likely to build with somewhat older versions anyway.)
+* Minor bugfixes - deal with a possible race condition with the in-mem search
+  index, change some logging statements from Info to Debug that didn't need to
+  be Info level and removed a test log statement that was no longer necessary,
+  updated copyright dates.
+* Add the Chef API version header to responses.
 
 0.11.3
 ------

docs/installation.rst

@@ -5,7 +5,7 @@ Installation
 
 To install goiardi from source:
 
-1. Install go. (http://golang.org/doc/install.html) Officially goiardi only supports go 1.7+ at this time, but older versions may work. Goiardi should generally be able to be built with the latest version of Go, and this is generally recommended. Immediately after a minor release, of course, caution may be warranted.
+1. Install go. (http://golang.org/doc/install.html) Goiardi now requires go 1.7+ (because of the use of contexts). Goiardi should generally be able to be built with the latest version of Go, and this is generally recommended. Usually it will also build with the previous minor release, and may build with older versions as well, but this shouldn't be relied on. Immediately after a minor release, of course, caution may be warranted.
 
 2. Make sure your ``$GOROOT`` and ``$PATH`` are set up correctly per the Go installation instructions.