Update CHANGELOG

At note about fix in 89b84b7.

Change-Id: Ie42b9415352e4c3b97c78fa0dbf74a3ed819a2b9
Reviewed-on: http://gerrit.causes.com/35693
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane@causes.com>

Author: Shane da Silva

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Overcommit Changelog
 
+## master (unreleased)
+
+* Fix bug where a plugin would fail to load if it had a custom configuration
+  defined
+
 ## 0.6.0
 
 * Breaking changes: plugin framework has been overhauled.