Bug 1093951 - Entering wifi power save mode when screen off. r=alive

While screen is off, wifi would go to power save mode only
when wifi lock is held. If wifi lock is not held, wifi would
stay on and be turned off after |wifi.screen_off_timeout|.
We can more aggressively request the wifi driver to enter
power save mode before timed out. This is what the patch
intends to do.
Bug 1047168 - Modify test_play_youtube to play a video file locally
Bug 1092960 - Camera app to follow text selection pattern
Bug 1097503 - Implement AppStatusbar
Bug 1101407 - Use correct commit hash
Bug 1094091 - [Stingray] Scaffolding Apps Deck of Stingray
Bug 1097446 - Provide flow diagrams for input management
Merge pull request #26102 from elefant/bug/1093951-wifi-powersave-master

Bug 1093951 - Entering wifi power save mode when screen off. r=alive
Bug 1101391 - Bidirectionally deep-compare structures in KeyboardApp layout_manager_test.js
Bug 1096928 - Intermittent test_add_contact_to_favorites.py
Merge pull request #26186 from mnjul/bug_1097446_input_mgnt_diagrams

Bug 1097446 - Provide flow diagrams for input management. r=timdream
Merge pull request #26100 from dwi2/bug1094091

Bug 1094091 - [Stingray] Scaffolding Apps Deck of Stingray
Merge pull request #26246 from bebef1987/fix_cont

Bug 1096928 - Intermittent test_add_contact_to_favorites.py
Merge pull request #26095 from alivedise/bugzilla/1097503/shadow-statusbar

Bug 1097503 - Implement ShadowStatusbar, r=etienne/kgrandon
Merge pull request #26253 from wilsonpage/1092960

Bug 1092960 - Camera app to follow text selection pattern
Merge pull request #26281 from evanxd/bug-1101407

Bug 1101407 - Use correct commit hash
Merge pull request #26280 from mnjul/bug_1101391_keyboardapp_layout_manager_test_false_negative

Bug 1101391 - Bidirectionally deep-compare structures in KeyboardApp layout_manager_test.js. r=timdream
Merge pull request #26243 from mwargers/youtube9

Bug 1047168 - Modify test_play_youtube to play a video file locally
Bug 1095142 - [SHB] Dialer screen does not fully cover lockscreen