make dualpanel user configurable
Add GlowPadView extensions needed for lockscreen targets and nav ring.

Change-Id: I4f82fd3fe04ac16c6737d38b2473f2a533c5d326
Fix layout of MultiWaveView and GlowPadView.

If the calculated size of the rings is much smaller than the measured
size (which is happening e.g. on mdpi 600x1024 tablets), the glow pad
appeared shifted to the right.
This happened due to the insets being calculated as difference of
available and needed size, and later on being added to the available
size. Example numbers (Nexus 4 with density forced to 160):
- computed size in onMeasure: 768x505
- scaled size in onMeasure: 505x505
- thus, insets are calculated as 131/0
- in onLayout, placementWidth (364) and max target width (108) are much
  smaller than width (768)
- thus, center is calculated as 131 + (768 / 2) = 515, thus shifted to
  the right

Fix that by not using width in the calculation, as the inset size
already takes it into consideration.

JIRA:CYAN-829
Change-Id: Ifc2a93214f812f554a8fed3243eed66aec9f00c9
Hide GlowPadView warnings

Make message verbose and contingent on DEBUG. This has been spamming
my logs everytime I touch navbar or lockscreen targets.

Change-Id: Iea1a6db86055d4034405f0ee4e20282b6c493210
Framework : Lockscreen - Customizable shortcuts

Forward port lockscreen shortcuts

Change-Id: Ic3b935df5c0da35f31373d96943e442dc39cf11b

Conflicts:

	core/java/android/provider/Settings.java
	packages/Keyguard/res/drawable-hdpi/ic_lockscreen_chrome_activated.png
	packages/Keyguard/res/drawable-hdpi/ic_lockscreen_chrome_normal.png
	packages/Keyguard/res/drawable-hdpi/ic_lockscreen_contacts_activated.png
	packages/Keyguard/res/drawable-hdpi/ic_lockscreen_contacts_normal.png
	packages/Keyguard/res/drawable-mdpi/ic_lockscreen_chrome_activated.png
	packages/Keyguard/res/drawable-mdpi/ic_lockscreen_chrome_normal.png
	packages/Keyguard/res/drawable-mdpi/ic_lockscreen_contacts_activated.png
	packages/Keyguard/res/drawable-mdpi/ic_lockscreen_contacts_normal.png
	packages/Keyguard/res/drawable-xhdpi/ic_lockscreen_chrome_activated.png
	packages/Keyguard/res/drawable-xhdpi/ic_lockscreen_chrome_normal.png
	packages/Keyguard/res/drawable-xhdpi/ic_lockscreen_contacts_activated.png
	packages/Keyguard/res/drawable-xhdpi/ic_lockscreen_contacts_normal.png
	packages/SystemUI/src/com/android/systemui/SearchPanelView.java