Clean up desktop file

[Maia-Everett]

The desktop file includes full stops at the end of comments, has typos in some localizations, and lacks the X-GNOME-FullName and StartupNotify headers.

A patch to fix this is available here: http://paste.ubuntu.com/602250/

[amigadave]

Thanks for the patch, I merged it into the upstream development repository, with some changes:

http://git.gnome.org/browse/easytag/commit/?id=07e58d5affeceeb77cb09ce9914c90fccd1fb7ef
http://git.gnome.org/browse/easytag/commit/?id=3f096d9b1ac68dabf77e9483fbe1805c15b57078
http://git.gnome.org/browse/easytag/commit/?id=35c7b2f6b8093c81c557115d25d1119070ec8ba4