GVim desktop entry is not translatable

[David Planella]

Binary package hint: vim

The desktop entry in Applications > Accessories > GVim Text Editor appears untranslated in all languages and cannot be translated.

This is due to the desktop file being shipped with static translations in the source package (debian/gvim.desktop), but only for the "Comment" section.

Ideally, the file should be renamed to gvim.desktop.in, translations removed (they should be in the PO files anyway) and the Name and Comment section be prefixed with an underscore for their strings to be extracted by intltool and merged into the POT template.

Additionally, in order for them to be translatable in Launchpad and used in the distro, the 'X-Ubuntu-Gettext-Domain' key should be added to the .desktop.in file (see https://wiki.ubuntu.com/UbuntuDevelopment/Internationalisation#Desktop%20Entries)