Bug 932750 - Add helper methods to GaiaData to get and set Gecko prefs
Bug 932836 - [e.me] Cache Collection suggestion list for offline state
Bug 923177 - [e.me] [feature] Enable adding custom Collections while offline

r=[ranbena, evyatron]
Bug 925359 - Tapping on the Group call layer holds the call
[bug 906273] increase height of label wrapper to avoid clipping Arabic-script text

This enables us to display Arabic-script labels without clipping and without disrupting the baseline position of the label text; the margin adjustments are to maintain the existing position of the text in relation to the icon, while its display box is enlarged to allow for taller glyphs to be drawn.
Bug 917196 - When short tones are enabled make audible tones short too r=etienne
Merge pull request #13644 from bobsilverberg/gecko_prefs

Bug 932750 - Add helper methods to GaiaData to get and set Gecko prefs
Merge pull request #13814 from jfkthame/patch-3

[bug 906273] increase height of label wrapper to avoid clipping Arabic-s...
Bug 937532 - Migrate calendar tests to use an app object
Merge pull request #13661 from EverythingMe/932836-collections-cache-response

Bug 932836 - [e.me] Cache Collection suggestion list for offline state
Merge pull request #13607 from JohanLorenzo/calendar-app-object

Bug 937532 - Migrate calendar tests to use an app object
Merge pull request #13794 from Rik/conference-call-hold-925359

Bug 925359 - Tapping on the Group call layer holds the call r=etienne
Bug 936639 - [Messages][Drafts] Create Drafts object + tests r=rwaldron