Update strings.xml

Little fixes
Merge pull request #14 from Mikelevel/patch-1

Update strings.xml
Strings (4.2) updates

More Strings added to replace new Apps from MIUI ROM
Strings (4.2) updates (fixed)

Fixed some errors in AntiSpam, Settings and ThemeManager
Added new strings to Settings.apk

More Spanish!
More fixes and additions
Delete duplicate string

delete duplicate string
Adeed new + fixed (Thanks to @cosmicdan)
Merge pull request #15 from elsorro/patch-1

Delete duplicate string