Bug 917028 - [B2G][SMS] Compose an SMS: Unable to add more than one recipient from Contacts r=borja

Remove the classList handling from updateComposerHeader because since version
1.1 we support sending multiple contacts.
Bug 918174: Load CSS from contacts index.html
Bug 916046 - Find duplicates button needs an icon
Bug 917207 - Create a system region for cards view and migrate tests to use it
Bug 917586 - Use newer version of screen reader simulator in desktop firefox.
Merge pull request #12282 from eeejay/bug-917586

Bug 917586 - Use newer version of screen reader simulator in desktop firefox. r=kgrandon
Merge pull request #12265 from anah/gaia_ui_tests_bug_917207

Bug 917207 - Create a system region for cards view and migrate tests to use it
bug 891724

Add ability to customize Support Contacts via variant json files.

r=qDot
Merge pull request #12323 from nullaus/891724-supportcontactcustomization

bug 891724
Revert "Merge pull request #12323 from nullaus/891724-supportcontactcustomization"

This reverts commit dce497b5cf19183f51a867334dd0524c816493dc, reversing
changes made to 432a79aedb558d998ea88c04d43427a2082a67ee.
bug 891724

Add ability to customize support contacts in Settings App, with unit test fixes.

r=qDot
Merge pull request #12326 from nullaus/891724-supportcontactcustomization

891724 supportcontactcustomization
Bug 905856: support for forward locked wallpaper, ringtones and songs
Merge pull request #11914 from davidflanagan/bug905856

Bug 905856: support locked media files r=johu,dkuo,hsivonen,kaze
Merge pull request #12319 from rnowm/916046

Bug 916046 - Find duplicates button needs an icon
Bug 908117: [B2G][dialer][tongxiao]Could not send out the USSD command when the USSD number is saved in the contact. r=jmcantera
Merge pull request #12297 from julienw/917028-add-more-than-1-contact

Bug 917028 - [B2G][SMS] Compose an SMS: Unable to add more than one reci...
Merge pull request #12329 from ferjm/bug908117.ussdfromcontacts

Bug 908117: [B2G][dialer][tongxiao]Could not send out the USSD command w...
Bug 891723 - Implement preloaded contacts customization by SIM. r=arcturus
Merge pull request #12318 from wanderview/contacts-css-opt-2

Bug 918174: Load CSS from contacts index.html  r=jmcf