UNC optimizations
- Moved generic LED functionality from package context under
notification manager service context
- reduced preference reloading
- reduced QuietHours helper class re-creation
UNC: added option to specify time interval for Alert only once feature
Will perform sound/vib alert for existing notification again after
user-defined timeout expires.
Updated Chinese (Traditional) translation
Updated Spanish translation
Updating Russian
Merge pull request #878 from gaich/patch-9

Updating Russian
Update strings.xml
Merge pull request #880 from xtrem007/jellybean

Updated Polish translation [JB]
Update It strings
Merge pull request #882 from pesa1234/patch-60

Update It strings
Updated French translation [JB]

UNC: added option to specify time interval for Alert only once feature
Merge pull request #889 from ch-vox/patch-36

Updated French translation [JB]