Bug 836282 - [BB][loaders] Apply correct activity/progress bar while categories selector is charging
Merge pull request #8037 from crdlc/bug-836282

Bug 836282 - [BB][loaders] Apply correct activity/progress bar while cat...
Bug 833467 - [Help] Allow empty support info
Bug 837139 - Performance tests framework built on top of the integration tests a=tests

fix unit tests
Bug 839068 - app install manager doesn't handle the uninstall of an app r=etienne

Correctly handle the uninstall event in the app install manager. Remove the
notification and the download icon if they're displayed too.
PARTIAL Disable failing tests

This is a stop-gap so we can start running the unit tests on a
Continuous Integration machine. See issue #838993:

https://bugzilla.mozilla.org/show_bug.cgi?id=838993
Comment out more failing tests
Fix issue with canvas usage

In order to avoid DOM exceptions, icons should not be draw to a canvas
until their image has completed loading.
Extend dialer Utils mock for unit tests
Disable failing tests