[osx/coreaudio] - add method which gets the number of channels inside a stream
[AE/osxsink] - factor the device enumeration out into its own class and unroll that big enumeration loop into logic parts
[osx/coreaudio] - split IsDigital into IsDigital and GetTransportType
[osx/coreaudio] - constify parts of CoreAudioDevice
[settings] - implement update mechanism for audiooutput setting (needed due to new setting format)
[osx] - sync xcode project
Merge pull request #4890 from Memphiz/osxsinkenumerator

[AE/osxsink] refactor the device enumeration for the osx sink
fixed: use the proper make instead of calling 'make' directly

fixes builds on freebsd
cmake buildsystem
add tests needed by new u16 string stuff
wrap cmyth properly
move some more install related stuff to install script
move all install code to platform install script
allow building without doxygen
fix building with yajl2
generate scripts in a subdir to avoid problems configuring in top dir
properly wrap library.xbmc.foo
link to threading lib
remove duplicate mpeg2 entry
properly locate java and swig

also use the detected paths for java, swig and doxygen