Fixed typos in strings
Updated Polish translation
Updated Spanish translation
Fixed another typo
Fix typos in translatable strings
Updated Polish translation
Updated Spanish translation
Updated Serbian translation
Updated Spanish translation
Add column for disc number to browser list
Add "Remove all text" to tag field context menu
Add "Write genre to text" setting to config file

https://mail.gnome.org/archives/easytag-list/2013-January/msg00003.html
Fix overlaid text in scanner legend

https://mail.gnome.org/archives/easytag-list/2013-January/msg00008.html
Updated Serbian translation
Updated Polish translation
Updated Spanish translation
Merge from master