Revert "Launcher3: add lockscreen wallpaper picker"

This reverts commit 4a2d97210a42a68ba55ac862143e3a59ded954dd.
Launcher: Add hotword detection

PS1: Added static hotwords detection for voice search, similar
to the Google Now Launcher. By saying "ok google" or "hey google",
Voice Search will start.

PS2: Cleaned up recognizer restart logic and unneeded code

PS3: Added configuration in the settings fragment, fixed a crash when
turning the launcher in landscape when in Settings

PS4: Now listening to custom hotwords :)
Demo video: http://youtu.be/SFv4P_1VTfo

PS5: Fixed crash on pause when no hotwords were setup

PS6: Fixed hotword enable checkbox not working

PS7: Muted the beep-beep, not without consequences as Google are
stupid enough to put that stupid beep-beep on STREAM_MUSIC, cutting
off currently playing music when we mute the stream. Added
a checkbox to disable voice recognition if music is playing.

PS8: Turned off debug flag, ship it

PS9: Whitespaces cleanup

PS10: More cleanup, added NEW_TASK flag, unmute audio when
leaving the launcher

Change-Id: Iaee82faba58aba9f1ed084ea93f5bf4fa3df3b5f
launcher3: Fix shortcut install/uninstall permission name

AOSP 4.4 has a public INSTALL_SHORTCUT/UNINSTALL_SHORTCUT permission.

Change-Id: I5cb5f9c6606bdfa5a50acbc1ae6a7ac0a83b1ac1
JIRA: CYAN-3201
Issue: https://jira.cyanogenmod.org/browse/CYAN-3201
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
LauncherModel : Ensure checkItemPlacement key casting

Ensure the key is casted correctly.

Change-Id: Id0ac5ab878d1d059c138ae294a3eff63bf0d858b