Merge pull request #15977 from mikehenrty/bug-966571-retrycount

Bug 966571 - Retry count not shown up in System SIM Dialog, r=arcturus,alive,ferjm
(cherry picked from commit 9de7295648e4bbbacfb90e897f50fbae0de4ee43)

Conflicts:
	build/jshint/xfail.list
Xfail test_cost_control_data_alert_mobile.py because of Bug 971696 - [v1.3][Cost Control] No data usage is available in notification bar or app
Merge pull request #16246 from chirarobert/v1.3_xfail_cost_control

Xfail test_cost_control_data_alert_mobile.py because of Bug 971696 - [v1...
Bug 968049 - Don't try to reload a null URL when reviving crashed tabs
Merge pull request #14918 from EverythingMe/941637-eme-aria

Bug 941637 - App icons don't have alt text so screen readers can't read ...
Merge pull request #15360 from rnowm/951130

Bug 951130 - Contacts Export view is visually incorrect
Merge pull request #16234 from mikehenrty/bug-966571-uplift

Merge pull request #15977 from mikehenrty/bug-966571-retrycount
Bug 972136: never display filmstrip when handling a pick activity.
Merge pull request #16071 from flodolo/bug968071_mediainfo

Bug 968071 - Taken/Shoot date in image/video info not localizable
Merge pull request #16260 from staktrace/browser

Bug 970428 - Don't run through the code to show the address bar if the s...
Merge pull request #16279 from davidflanagan/bug972136

Bug 972136: never display filmstrip when handling a pick activity. r=dmarcos