[audioencoders] move vorbis, lame, flac and wav audio encoders to add-ons
[osx] xcode changes
[win32] project changes for audioencoders
[addon-helpers] set building shared libs as default and try to link as static as possible on all platforms but linux
[binary addons] autodetect and generate soname version
[depends] add audioencoder addons flac, lame, vorbis, wav
[depends] remove unnecessary android renaming of flac/ogg/vorbis/lame .so's as we link statically
HACK: add a transcode job to allow ready testing (from context->Rip audio track) of audio encoders