show stack on errors
Lock bower to fix bug

https://github.com/bower/bower/pull/1403
lock bower-grunt-task version
Merge pull request #122 from bkeepers/fix-ci

Fix ci
Update README.md
Merge remote-tracking branch 'origin/master' into by-mention-type

* origin/master:
  Update README.md
  lock bower-grunt-task version
  Lock bower to fix bug
  show stack on errors
Move logic for reponsive toggle
Stop loading on error