Revert "frameworks/base: Update quick launch shortcut icons/resources"

This reverts commit 57527b43a6a01779f5fbf09861bb893cc88eaa9d.
Revert "fix error"

This reverts commit a6242542cb8d1ae51e9a79cee9fa61b4c235a18a.
Revert "frameworks/base: Update quick launch shortcut icons/resources"

This reverts commit 2d7fc7e82bd8681e504a0b93d5a8f0012b3526f7.
Revert "frameworks/base: Update quick launch shortcut icons"

This reverts commit 95cc2c45c2a703abf38a911c56da802378a6a71c.
Revert "frameworks/base: Update quick launch shortcut icons"

This reverts commit 93229528e729ee00e0dac87e8987217c14189467.
frameworks/base: Update quick launch shortcut icons/resources

Update the existing icons and add "xxhdpi" versions created
from a vector template. This commit cleans also the resource
files a bit up.

Screenshot: http://goo.gl/6CrMYr

Change-Id: I45abee5cf13cd239eb5b4402019afac28d6d5952

Conflicts:
	core/java/com/android/internal/util/cm/NavigationRingConstants.java
	core/java/com/android/internal/util/cm/NavigationRingHelpers.java
	core/res/res/values/dimens.xml
	core/res/res/values/symbols.xml
	packages/SystemUI/src/com/android/systemui/cm/ActionTarget.java