Add ability to exclude apps from the sidebar [2/2]

Change-Id: I084fc93e679ecd588e0c9c9e33870e85b168e67c

Conflicts:

	AndroidManifest.xml
New app sidebar with support for folders, custom ordering and support for left/right side [2/2]

Patch Set 2:
  Added option for displaying visible tab.

Change-Id: I2b8d1be833205aeff505da4be05dfb3da4500460

Conflicts:

	AndroidManifest.xml
Use preference change listener for the enable switch since the user could slide the switch over and onPreferenceTreeClick would not be called.

Change-Id: I917b51cbee558df88fa702299b00bab6ce065319
Add adjustable trigger area for the @ppbar.  Users can define the width, height and Y position of the trigger area.  Only this area will receive touch events. [2/2]

Change-Id: Ie8f80dfc4de5d3de8bcc1a0c24fb6b2aabeeee65

Conflicts:

	res/layout/seek_bar_preference.xml
	res/values/attrs.xml