* Merge from debian/unstable, remaining changes: - don't build against libdirac, lame, libopenjpeg, librtmp, frei0r, vo-aacenc, vo-amrenc, x264, and xvid (all in universe) - do not build libav-extra-dbg, it is build from the libav-extra source package in ubuntu. - drop libav-regular-dbg, not necessary in ubuntu - Adjust LIB_PKGS/LIB_PKGS2 lists in debian/rules - several ifdefs in debian/rules that allow the use of the same file in libav and libav-extra (most of this can be merged into the debian package)