* Corrects errors in the Vorbis specification documentation.
* Specification converted to DocBook format.
* Added timebase conversion call to libvorbis.
* Fixes ov_time_tell() bug for non-seekable streams.
* Various decoding fixes.
* Addition of ov_crosslap() which allows smooth transitions between
two vorbis segments.
* Numerous seeking fixes and optimizations.
* Fixed bugs affecting decode of one-audio-page samples.
* Added ov_halfrate() which allows a "free" conversion from the
source sample rate to half of the source rate.
* Improved handling of quiet signals in low bitrate modes
buildlink2.mk files back into the main trunk. This provides sufficient
buildlink2 infrastructure to start merging other packages from the
buildlink2 branch that have already been converted to use the buildlink2
framework.