Group bass with other guitars in ScreenSongs::drawInstruments (TODO: actually iterate over instruments and print proper icon for each type).
Added New Rocker font to the tree. It will be installed system wide.
Enable mipmapping on Intel as well (apparently the drivers have improved and it actually works now).
A simple fix for bug #41. Not sure if this is the right way to do it though.
Automatically set texture repeat state every time a texture is being rendered. This should avoid some artifacts on surface borders when clamping is the desired option (repeating had been hardcoded until now).
Replace all fonts with ones that are shipped with Performous. No more Microsoft dependency.

- New Rocker (blackletter), Droid Sans Mono (monospace) and Goblin (serif)
- Goblin renders in larger size than other fonts, this may need to be adjusted for in theme files
- Quickly reviewed for graphical bugs but needs more testing
Make the text in song selector a little less broken.

- Centered
- Do not append menu usage if there are no songs (that match search)
- No newline in "Visit performous.org ..." (l10n not updated)
Do not request any specific stencil buffer size (avoids GL warnings).
Merge branch 'master' into webserver

I haven't done anything to the webserver branch yet, I'm about to start working on it, therefore I need an up-to-date-copy