Configurable grace period for superuser privileges, Minor spell fixes, Minor repository fixes in files
Fix the repository files, Undo fixing Lint warnings for strings.xml due to problems in some languages, Use strings from android sources
Merge branch 'dev'

Conflicts:
	Superuser/res/values-el/strings.xml
	Superuser/res/values-fi/strings.xml
	Superuser/res/values/strings.xml
	Superuser/src/com/koushikdutta/superuser/SettingsFragmentInternal.java