Merge pull request #15 from DvTonder/master

Update source
IT translation: New strings
Update Notifications strings
Merge remote-tracking branch 'upstream/master'
IT translation: Update Notifications strings
Merge pull request #203 from NetBender/master

IT translation: Update Notifications strings
Update strings
IT translation: Update strings
Merge pull request #204 from NetBender/master

IT translation: Update strings
Merge pull request #205 from adrianis86/master

RO update
Add Persistent notification option
Add backup and restore strings
updated Slovak translation
Update of Hebrew translation

Adding 'Preferences backup' translation and finishing 'Incompatible launcher' translation.
Update french translation
Merge pull request #16 from DvTonder/master

update source file
French translation
Merge pull request #206 from pylerSM/patch-19

Updated Slovak translation
Merge pull request #207 from siiie/patch-1

Update of Hebrew translation
Merge pull request #208 from DelphinPETER/master

Update french translation