Bug 987496 - Adding Hindi Input Method for B2G

Cherry-pick from 7882bd086a460ff07b170ed45a1cf8981f4d0f72

Conflicts:

	build/config/keyboard-layouts.json
Bug 1050023 - Do not wake the screen for download notifications
Merge pull request #22866 from mikehenrty/bug-1050023-v1.4

Bug 1050023 - Do not wake the screen for download notifications
Merge pull request #22799 from nullaus/bug1049790

bug 1049790 - Use one event listener for system time changes. r=fcampo
(cherry picked from commit 408e24a54fb13217428fa9387ca01044a1ea3da4)

Conflicts:
	shared/js/tz_select.js
Merge pull request #22901 from nullaus/v1.4

Merge pull request #22799 from nullaus/bug1049790
Bug 1044960 - hide startscreen if tab url was null
Merge pull request #22762 from luke-chang/987496_v1.4_hindi_input_method

Bug 987496 - Adding Hindi Input Method for B2G
Revert "Merge pull request #22762 from luke-chang/987496_v1.4_hindi_input_method"

This reverts commit 6572583f91a3937839b1ff5c7d370b6a11a34c24, reversing
changes made to 93b469e3643f6caed8e190c72b612c60f6a74a1e.
Bug 1044960 - fix lint error, r=me
Revert "Merge pull request #22901 from nullaus/v1.4"

This reverts commit ab9a57d204c8c06cccc70cb7190da789fe17a3cb, reversing
changes made to 518c6afa28dc3b87e3a7360ee4b751885884d03d.
Merge pull request #22945 from nullaus/bug1053509

bug 1053509 - Use plain js download object when download succeeds. r=crd...
(cherry picked from commit 385f8b1fc9179441c9d6a6ad16ff8701edfa1faa)
Merge pull request #23007 from nullaus/v1.4

Merge pull request #22945 from nullaus/bug1053509
Merge pull request #22979 from evelynhung/issue-m039154

Bug 1039154 - handle provisioning document format error, r=gsvelto
Bug 1047645 - Use manual timeout to guard _closed event from not firing r=alive

Patch for v1.4.

Conflicts:
	apps/system/js/app_transition_controller.js
	apps/system/js/app_window.js
	apps/system/test/unit/app_window_test.js
	apps/system/test/unit/lockscreen_window_test.js
Merge pull request #22967 from KevinGrandon/bug_1031225_cherry_pick_bug_1047645_to_v1dot4

Bug 1047645 - Use manual timeout to guard _closed event from not firing
Bug 1045503 - [tarako][contacts] we should reduce the use of storage by contacts app
Merge pull request #21665 from EragonJ/bug-1035823

Bug 1035823 - [DSDS] The SIM manager page is not refreshed if configurat...
Revert "Merge pull request #21665 from EragonJ/bug-1035823" for Gu test
failures on TBPL

This reverts commit ce631d7ada1845ef7ed925a506eb91cda6f09d24.
Bug 1035823 - [DSDS] The SIM manager page is not refreshed if configurat...
Merge pull request #23057 from EragonJ/v1.4-bug-1035823

Bug 1035823 - [DSDS] The SIM manager page is not refreshed if configurat...