* Merge from Debian unstable (LP: #604945). Remaining changes: - Added an apport package hook - Changed libgl1-mesa-swx11-dev to libgl1-mesa-dev in Build-Depends * Dropped changes: - Drop dependency on openal. As the package is in universe now, it's not mandatory anymore - src/skyrocket.{cpp,xml}: Disable sound by default. Same reason. - Add --disable-sound configure flag to debian/rules. Same reason.