Update strings.xml

Italian translation adjustment
Updated Portuguese (PT) translation
Updated French translation
Fixed status bar brightness control for Android 4.1
ModMtkToolbar is relevant only for Android 4.2
Added options for Call Vibrations
- vibrate on call connected
- vibrate on call disconnected
- vibrate on call waiting
- vibrate every 45th second during outgoing call
Added MT6572 to the list of MTK devices
Merge pull request #121 from spacecaker/master

Dutch ( NL-Netherlands ) Translations
Merge pull request #120 from ch-vox/patch-40

Updated French translation
Merge pull request #119 from bgcngm/master

Updated Portuguese (PT) translation
Merge pull request #118 from pitone02/patch-5

Update strings.xml
Updated Russian translation
Updated Russian translation (fixes)
Updated Japanese Translation
Updated French translation
Merge pull request #124 from ch-vox/patch-41

Updated French translation
Merge pull request #123 from WedyDQ10/patch-2

Updated Japanese Translation
Merge pull request #122 from romashko/master

Updated Russian translation
Updated Portuguese (PT) translation
Updated Hungarian translations (tanks to benjoe1)