bug-fix
es-comment-dwim: pass on the arg to comment-or-uncomment-region
electric indent compatibility
es-silence-messages: better implementation
es--change-number-at-point: better implementation
es-comment-dwim: made the arg optional
minor
bug fix
es--change-number-at-point: accept ammount
tests: added tests for es--change-number-at-point
es--change-number-at-point: better context awareness
minor