Back to white icons.
Revert "Update Settings Icons- hdpi"

This reverts commit 3938d9a3ecf32fbe956cc8cb810fe9d8ba1d393a.

Conflicts:
	res/drawable-hdpi/ic_settings_about.png
	res/drawable-hdpi/ic_settings_system.png

Revert "Update Settings Icons"

This reverts commit 1136411e57575b82f14b0cdb980d2d3571bb3291.

Conflicts:
	res/drawable-xhdpi/ic_settings_about.png

Revert "These need to be left be until you develop the icons further and we approve of them"

This reverts commit 3bc67580b52ba41d489bb42dbf2591b75500e3ba.

Revert "SystemUI icons revamp"

This reverts commit a336125f023fb65dc6f69ab9876cec7fbc7ea934.

Conflicts:
	res/drawable-hdpi/ic_settings_about.png
	res/drawable-hdpi/ic_settings_system.png
	res/drawable-xhdpi/ic_settings_about.png
Check if the Activity is finishing before showDialog()

Check if the Activity is going through its finishing phase before
displaying the Dialog, because Showing dialog once the activity
is no longer in context will cause BadTokenException.

Change-Id: I58940e694f61cd79536abe2df60a0b745a7b806f