Settings: Fix blacklist settings

Change-Id: Ibe5099f132eb7e496469381b4ac3af11d0ecaac6
[2/2] Settings: MultiUser support

enable omni specific settings headers for all user

Change-Id: Ic14a508fdae8f25c428a5b81133f42399f4b3a59
Settings: update Chinese translation

Change-Id: I9135babf08b5729411be2d16491b6b0452da060a
Settings: add "Accept all files" option for incoming files via Bluetooth [1/3]

  Vanilla Android requires the incoming file from Bluetooth to be certain mime-types.
  The mime-types allowed are defined in
packages/apps/Bluetooth/src/com/android/bluetooth/opp/Constants.java
  But sometimes we need to accept files that is not in the list,such as RAR archives
or APK packages.
  This patch makes "Accept all files" an option in Settings -> Bluetooth -> (Menu),
and then saves users' choice to Settings Provider database.
  This will meet users' demand as well as keep the phone from unsafe files
when users don't need to accept the files out of the mime-type whitelist.

  Use together with https://gerrit.omnirom.org/6783/
and https://gerrit.omnirom.org/6784/

Change-Id: I52ac0fdefeaff8ee5bc9ced38efdf16b54a1eee8
Merge branch 'android-4.4' of https://github.com/omnirom/android_packages_apps_Settings into omni-android-4.4