Merge branch 'roach/0-4-1-release'

Author: Roach

CHANGELOG.md

@@ -1,7 +1,9 @@
 ### v0.4.1 (2018-01-05)
 
   * Fixes crashes due to missing `job_output`
-  * Removed `debug` from README example
+  * Support for private channels (Group IDs)
+  * Fixed example code in README
+  * Stability improvements
   * Various docs updates
 
 ### v0.2.0 (2016-03-25)