Notification Light: Fix apps with same name not showing up

Applications with the same name didn't show up in the
notification light add-app-dialog (with Facebook's "Messenager"
and Google's "Messenager" being the prominent example here).

This happend due to the fact that the list of applications
was sorted by names only and inserts with collisions were
dropped.

This commit refactor notification light settings to use packages
instead of application semantics. Further the list of packages
is now ordered by human readable name followed by package name,
which avoids the collision.

Additionally we handle situtations gracefully where a package
has more than one launcher activity (Again for example,
Google's "Messenger" and "Google+" is in the same package).

Bonus: potential race condition in the list adapter was
fixed, concurrent semantics were emphasized, unused imports
removed.

Change-Id: I87ad32f535ca866883df337432d1b0cecc9485a8
Settings : FR translation

-Add new translation

Change-Id: I273f497c386b5449e2aada48a14f5dff3951db5e
Settings: ES translations

- Pie controls
- Auto-brighness

Change-Id: Id39711a7ad70ab1ec796a7b445aa1fa5a67eda56
Bye, bye Talk. Welcome Hangouts (2/2)

Patch Set 2:  Add Simplified Chinese translation
              Fix "application" in default

Change-Id: I2da62bbb24342ce614e06a0959066c2b35463b43
Settings: SK Translations [FIXED]

Change-Id: I67775fb852c8e3f7b6f73b494b3ef6d39c2f6c41
Settings: NL translation

Pie controls: Tweaking UX for pie service

ps2: Allow changing auto-brightness responsitivity.

ps3: implemented suggestion

ps4: trigger Cid

Change-Id: I09df611fa342e43f21c2dfdf98feff2325e15d6e
Settings: PT-BR Update Translations

Change-Id: Idbae46133f4f78879f110f3f73c6bb37da5281a3
Settings: HU translation update

Change-Id: I666c6e494bb1cf3935e0ae859d6cd6a306563be4
Settings : FR translation

-add missing translation

Change-Id: Ic27f6daefdb562b593223a5f3979998884b08b92