Bug914942: [Contacts] support Greek and Cyrillic letter separators
Bug 928376 - Enable Python lockscreen notification test for Travis
Bug 921824 - Highlight color is often not visible after a click on an element. r=arnau
Merge pull request #12938 from vingtetun/hover

Bug 921824 - Highlight color is often not visible after a click on an el...
addressing bkelly’s comments
Merge pull request #12502 from fabi1cazenave/contacts-bug914942

Bug914942:  [Contacts] support Greek and Cyrillic letter separators, r=bkelly
Merge pull request #12937 from zacc/bug928376

Bug 928376 - Enable Python lockscreen notification test for Travis
Bug 915081 - Hide the end-and-answer button during CDMA call waiting r=etienne

- Removed the end-and-answer button when in CDMA call waiting mode as it
  does not support ending the first call and answering the other one,
  the hold-and-answer button is enlarged to fill up the entire container
  under these conditions
- Added unit-tests covering the changes