Changed release version from 1.6.0 to 1.5.1. 	Change on 2013/08/02 by psimakov <psimakov@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=50300399
Changed release version from 1.6.0 to 1.5.1.
	Change on 2013/08/02 by psimakov <psimakov@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=50300399

andela-angene/coursebuilder-core,andela-angene/coursebuilder-core,andela-angene/coursebuilder-core,andela-angene/coursebuilder-core