Add "compile" to .gitignore
Rhythmbox: Fix localization parenthesis typo.
Rhythmbox: Use case-insensitive compares.

Fixes an issue where albums/songs were grouped incorrectly, when the Rhythmbox
database has inconsistent case for them -- especially common with words like
"of" and "the".
"Artist A" and "Artist a" are now treated as one and the same,
and the same applies to album names.