Update strings.xml

Update German translation
Added Polish translation
Create PT-BR translations
Merge pull request #18 from lolet/jellybean

Added Polish translation
Merge pull request #21 from gafanhotz/patch-1

Create PT-BR translations
Merge pull request #17 from Mority/patch-1

Update strings.xml
Update PT-BR translations - Fix typo
Merge pull request #22 from gafanhotz/patch-1

Update PT-BR translations - Fix typo
Add missing "<" in values-pt/strings.xml
Update res/values-it/strings.xml
Merge pull request #23 from udK/patch-1

Update res/values-it/strings.xml
Better french translations. New strings added.
Merge pull request #24 from CDRom/patch-1

Better french translations. New strings added.
Merge remote-tracking branch 'upstream/jellybean' into jellybean