vlc blocks: remove useless VLC_USED at function returning void
macosx: video effects panel: synchronize text field and stepper values properly by using cocoa bindings

This simplifies the code and fixes stepper responseness.
This also fixes enabled state of some steppers.
puzzle: row and col values of 1 are not supported
macosx: video effects: limit puzzle settings from 2 - 16
macosx: video effects panel: limit posterize values to 2 - 256

When trying to set 1, VLC hangs...
macosx: video effects: limit wall settings to 1 - 15 and clone setting to 2 - 20
upnp sd: fix warning
upnp sd: Fix a warning introduced in the previous commit
upnp sd: Add support for Samsung devices' subtitles extensions

 * Request the sec:CaptionInfo and sec:CaptionInfoEx DIDL attributes
 * If one of the two caption attributes are present, build and add an
   input-slave option string which forces the subtitle demux
 * Add the sub-track-id option to input items with subtitles
   so the subtitles are immediately visible
upnp sd: work around missing XML namespaces in DIDL documents
quartztext: fix incomplete copyright header
quartztext: add support for HTML color names within color tags
macosx/CAS: fix incorrect channel name field activation in stream panel
macosx/CAS: simplify stream-out summary to something useful
macosx/CAS: implement basic error checking for the stream-out settings
news: Update the 2.1 services discovery section
Remove aout_Packet API from WaveOut
libvlc: match the documentation to the actual behaviour
live555: use calloc
macosx/CAS: implement streaming

minor announcement stuff left to do