sync up kh8. A number of reports have appeared over the last few weeks, these

include build failures, ogg handling problems, and memory corruption.

The only new feature is that metadata updates can take a url arg now. The
refbuf cleanup still needs confirming but it is required to prevent the ogg
stream header pages disappearing. Other cleanups have occurred to help
merging to trunk and clean up valgrind reporting.


svn path=/icecast/branches/kh/icecast/; revision=15607