Don't show "Eject card" if the card is not accessible

SD card is not accessible without removing the battery on some devices.
Remove the "Eject" options on those devices

Depends on http://review.cyanogenmod.org/62708

Change-Id: Iddfa72314f7c96579ddd98e8fb312236348b7c2d
Lockscreen shortcuts, targets and more

Thanks to Mahdi for it and Slim for Lockscreen Targets and Shortcuts

Some clean up and string fixes in this commit as well

Signed-off-by: Chintan Shah <cgintan1998@gmail.com>
Settings: Port Lockscreen Targets, Shortcuts and more

First thanks to PA and CM which gave us partly code and some ideas.
Still some parts of the original implementation are/were buggy as well
we needed to ehance it.

Whatever the new Slim version is now ready and seems to be completly bug
free.

- Configurable lockscreen targets...on tablets 8 on phone either 5 or 8
- configurable lockscreen shortcuts only on phones...up to 5 shortcuts
- Centralazing some methods....using now then rounded corner on custom
  images systemwide...means on all other shorcut features we have
- multiDpi compatible
- new settings logic
- instance handling of all dialogs like we do on all other places
  way nicer this way
- tons of fixes

thanks kroz for redoing all xxhdpi icon in fb

Change-Id: I7749c592f75e51faa5db84d0a0ec314623c9b499

This commit replaces CyanogemMods lockscreen targets with Slims version, it also adds:
Settings: More Lockscreen Colors (2/2)
Settings: disable keyguard widget frame (2/2)
-little clean up

orignal commits can be found here:
https://github.com/SlimRoms/packages_apps_Settings/commit/f748a06fd3567f7218b6d87ce17a2cb6f6d7511c
https://github.com/SlimRoms/packages_apps_Settings/commit/4917ec6d1750a0d2257d5bdbde1cfede96eef926
https://github.com/SlimRoms/packages_apps_Settings/commit/b0272d10472fb4107083c707f95cb2da85623494

Conflicts:

	AndroidManifest.xml
	res/drawable/slim_lock.png
	res/layout-land/lockscreen_targets.xml
	res/values/mahdi_arrays.xml
	res/values/mahdi_strings.xml
	res/xml/lockscreen_interface_settings.xml
	res/xml/lockscreen_widgets.xml
	src/com/android/settings/mahdi/LockscreenInterface.java
	src/com/android/settings/mahdi/LockscreenStyle.java