Mail - Added hostname to settings before locking

Added settings.hostname before locking settings, the class may need a comment explaining when is settings.hostname needed
Merge pull request #82 from leonelcamara/patch-1

Mail - Added hostname to settings before locking
Turkish language support
Update tr-tr.py
Update and rename tr-tr.py to tr.py
Merge pull request #83 from yasinmuaz/patch-1

Turkish language support for Welcome app