remove some redundant EXTRA_DIST entries and add the HACKING file
remove some redundant EXTRA_DIST entries and add the HACKING file


git-svn-id: 03f0f1727258f1959b7b485b30a676bafdb78148@2603 0101bb08-14d6-0310-b084-bc0e0c8e3800

ShiftMediaProject/vorbis,Distrotech/libvorbis,pcwalton/vorbis,jdm/vorbis,ShiftMediaProject/vorbis,jdm/vorbis,pcwalton/vorbis,OffByOneStudios/vorbis,libninjam/libvorbis,KTXSoftware/vorbis,brion/vorbis,libninjam/libvorbis,ShiftMediaProject/vorbis,OffByOneStudios/vorbis,wighawag/vorbis,TitaniumEagle/libvorbis,libninjam/libvorbis,KTXSoftware/vorbis,brion/vorbis,Rillke/vorbis,KTXSoftware/vorbis,brion/vorbis,TitaniumEagle/libvorbis,OffByOneStudios/vorbis,Rillke/vorbis,jdm/vorbis,Rillke/vorbis,pcwalton/vorbis,ShiftMediaProject/vorbis,TitaniumEagle/libvorbis,TitaniumEagle/libvorbis,wighawag/vorbis,Distrotech/libvorbis,KTXSoftware/vorbis,Distrotech/libvorbis,ShiftMediaProject/vorbis,ShiftMediaProject/vorbis,Rillke/vorbis,wighawag/vorbis,libninjam/libvorbis,OffByOneStudios/vorbis,pcwalton/vorbis,pcwalton/vorbis,brion/vorbis,jdm/vorbis,jdm/vorbis,Distrotech/libvorbis,wighawag/vorbis