Merge pull request #11943 from cctuan/911677

Bug 911677 - hide phone-related settings if telephony is not available
Merge pull request #11991 from arcturus/bug-909708

Bug 909708 - [CONTACTS] On Export contacts "To SIM" option is active when there isn't a SIM card in the device.
Merge pull request #12057 from Rik/call-status-bar-908679

Bug 908679 - Redesign the status bar version of the call screen r=etienne
Bug 902416 - [Contacts][Export/Import] Style polish. Adding new icons and CSS tweaks r=jmcf
Bug 914580 - Rename web components -> html imports
Bug 914412 - Set browser app's page visibility as an activity opener correctly.
Bug 910915 - Add UI Test for notification app opening
Merge pull request #12066 from qdot/910915-notification-tests

Bug 910915 - Add UI Test for notification app opening; r=julienw
Bug 914564 - Do not callback when screen is changed once menu is hidden.
Merge pull request #12070 from borjasalguero/oslo_tweak_export_contact

Bug 902416 - [Contacts][Export/Import] Style polish. Adding new icons an...
Merge pull request #12030 from jmcanterafonseca/bug-911978

Bug 911978 - If no contacts are present export should be disabled
Merge pull request #12038 from lodr/bug-913516-showing-a-fallback-name

Bug 913516 - Adding a display name as fallback when no name is available to show.
r=jmcf
Bug 914626: [System] missing entities, r=steveck
Bug 910267 - Add a busy tone when the callee is busy

Per cerfication requests we need to play a busy tone, not only display
the information to the user in a message. This commit adds a busy tone
playback. It also fixes the telephony helper tests.
Merge pull request #12080 from fabi1cazenave/systemMissingEntities-bug914626

Bug 914626: [System] missing entities, r=alive
Bug 914636 - Fixing message handler
Merge pull request #12048 from arcturus/bug-914130

Bug 914130 - Exporting contacts keeps the previous state
Merge pull request #12081 from lissyx/bug910267

Bug 910267 - Add a busy tone when the callee is busy r=etienne
Bug 914673 - Javascript error: TypeError: IccHelper.iccInfo is null
Bug 907708 - [HD][Settings] App Permission Styling and Layout