[2/2] added Slim Recents as option

PS2: Grammar fix
PS3: Delete whitespace
PS4: Rebase
PS5: Fixes from Aaron
PS6: Rebase
PS7: Rebase

Change-Id: I342da51a8000d7673ea24874b10ec9ad545f0743

Conflicts:

	res/values/pac_strings.xml
	src/com/android/settings/slim/RecentsPanel.java
Settings: SlimRecents scaling + lefty mode (3/3)

    - Add scaling mode....user can scale the overall size down (especially for the
      user with stock dpi requested)

    - Add lefty mode. Recent panel shows up on the left edge instead of the right edge
      for left handed people.

Both are one time accesibility settings. So we put it there.

Change-Id: Ifa7a7299538f3c8f9c592c0c61b48dfa9fbeb2d6

Conflicts:

	res/values/pac_arrays.xml
	res/values/pac_strings.xml