Bug 906630 - [HD][Browser] Replace back tab arrow icon
Bug 874348 - [Buri][Email]Failed to send and receive mail with 163 exchange account. r=asuth

land https://github.com/mozilla-b2g/gaia-email-libs-and-more/pull/237
Merge pull request #11651 from asutherland/email-fix-163.com

Bug 874348 - [Buri][Email]Failed to send and receive mail with 163 exchange account. r=asuth
Merge pull request #11646 from samjoch/bug-906630-HDBrowserReplaceBackTabArrowIcon

Bug 906630 - [HD][Browser] Replace back tab arrow icon
Bug 906894 - [Gallery] Video pause button not centered