Bug 1053834 - Wrong regular expressions in build/shared-utils.js and build/webapp-shared.js r=gduan
Bug 1057307 - Can't type korean 중성(CHUNG SUNG) character.
Bug 1058374 - Enable Korean IME by default
Merge pull request #22976 from yurenju/regex

Bug 1053834 - Wrong regular expressions in build/shared-utils.js and build/webapp-shared.js r=gduan
Merge pull request #23292 from sangpire/Bug1057307

Bug 1057307 - Can't type Korean 중성(CHUNG SUNG) character, r=timdream
Bug 1022192 - Add more log for settings.js r=me
Merge pull request #23298 from yurenju/log-settings

Bug 1022192 - Add more log for settings.js r=me
Merge pull request #23297 from timdream/keyboard-korean

Bug 1058374 - Enable Korean IME by default, r=rudyl
Bug 964601 - [Settings] Add usb transter panel

- rename system storage to usb_storage
- have split switch
- have usb storage settings in storage_item