LB-1958: setup coverage for mocha

Added mochacov package.
Removed travis.yml coverage and added it to grunt task travis:ci
Removed loading of grunt-karma-coveralls within grunt that is done by
load-grunt-tasks.
LB-1510 New post notifications

If the post is removedPostFromCollection don't increase pending count.
LB-1706 As STT, I want my production instances to be on 2.0 stable

Fixed stt related themes.
LB-1958 setup coverage for mocha

removed mochacov package.
Merge pull request #248 from nistormihai/devel

Devel