oggzmerge: when merging 2 inputs vorbis+*, ensure the vorbis bos is not first (the bos for * will be first, even if * is another vorbis file). closes ticket:189
oggzmerge: when merging 2 inputs vorbis+*, ensure the vorbis bos is not first
(the bos for * will be first, even if * is another vorbis file).
closes ticket:189


git-svn-id: ed696e516b63563c8842837a624e30c98be77b3c@2029 8158c8cd-e7e1-0310-9fa4-c5954c97daef

brion/liboggz,kfish/liboggz,brion/liboggz,brion/liboggz,brion/liboggz,kfish/liboggz,kfish/liboggz