xz: build xz:host as static library
xbmc: update to xbmc-13.alpha-024ef6b
re-add package: 'json-c'

for pulseaudio. now built as static lib
re-add package: 'speex'

for pulseaudio. now built as static lib
re-add package: 'libsndfile'

for pulseaudio. now built as static lib
re-add package: pulseudio

updated to 4.0. some ubuntu patches imported
re-introduce pulseaudio support
xbmc: add pull/3976

... for testing pulseaudio
build with PULSEAUDIO_SUPPORT=yes in projects/*/options
Merge remote-tracking branch 'upstream/master' into steam

Conflicts:
	packages/audio/libsndfile/package.mk
	packages/audio/pulseaudio/package.mk
	packages/audio/speex/package.mk
	packages/devel/json-c/package.mk