Settings: new dslv + Dialog handling

dslv get some tweeks to be perfect
- dialogs get instance handling
- icons show all in same size independent which icons they are
- option "none" is on normal action not available and gets filtered

Other settings:
- clean up a bit
- use more centralized strings
- dialog get instance handling
- add missing landscape layout settings for color picker

Change-Id: Icc334b3f1940188492133ac50e04800ecb41d093

Conflicts:
	res/values/psx_strings.xml
	res/xml/power_menu_fragment.xml
	src/com/android/settings/slim/dslv/ButtonsListViewSettings.java
	src/com/android/settings/slim/fragments/PowerMenuFragment.java
correct navbar landscape default value for reset

Change-Id: I18e4eb23c34e57e5aed22523b0ebcb3bfda86834