Bug 956642 - [Settings] add marionette for language change

- add marionette test for language
Bug 968050 - Erase backward compatibility codes for Bug 791506
Bug 974046 - [Messages] Carrier tag bar width
Merge pull request #15033 from EragonJ/bug-956642

Bug 956642 - [Settings] add marionette for language change
Bug 968692 - [settings] add marionette test for Screen lock panel

- add lockscreen related test
Bug 970284 - Put Background in both System and Homescreen App
Merge pull request #16635 from fabi1cazenave/smsTagBarWidth-bug974046

Bug 974046 - [Messages] Carrier tag bar width. r=schung, a=v1.4+
Merge pull request #16110 from masap/20140210

Bug 968050 - Erase backward compatibility codes for Bug 791506
Merge pull request #16113 from EragonJ/bug-968692

Bug 968692 - [settings] add marionette test for Screen lock panel
Bug 975292 - [DSDS] "SIM 01" and "SIM 11" names are wrong
Merge pull request #16636 from wilsonpage/bug/975192

Bug 975192 - [B2G][Camera] No option to cancel out of taking a new photo...
Merge pull request #16601 from EragonJ/bug-975292

Bug 975292 - [DSDS] "SIM 01" and "SIM 11" names are wrong
Bug 960667 - Fix popup height
Merge pull request #16640 from changm/bug970284

Bug 970284 - Put Background in both System and Homescreen App. r=alive
Merge pull request #16605 from alivedise/bugzilla/960667/popup-height-wrong

Bug 960667 - Fix popup height, r=timdream
Bug 976957 - [Homescreen] Wallpaper background-images should fit viewport