Fix the v4l2 "reset all controls" code. Use the extended API when supported and fallback to old api in Control().

If the v4l2 driver supports the extended control api, use it to enumerate all the controls when the ControlReset function is called (it will reset all the controls which aren't in the MPEG class), else fallback to the old api.

Fix hostname reporting on some weirdly configured systems like mine (actually, use short hostname as it should be).
Fix qt4 interface of displaying it in About dialog the same way as wx interface does.

Add v4l2 tuner support. Example command line for Hauppauge PVR 250 to get France 2 (at ECP) and encode as MPEG2: ./vlc -I dummy -vvv 'v4l2c://:audio-method=0:controls-reset:set-ctrls={video_bitrate_mode=1,video_bitrate=4000000,video_peak_bitrate=4000000}:width=720:height=576:tuner=0:tuner-frequency=478550'

format audio. 

be more strict when testing for packet types

opengl-vout-osx: remove 2 incorrect checks (assuming that 10.3.9 == __ppc__ is _no_ good idea) and fixed a couple of compilation warnings

Qt4 - make the difference between DIALOG_USER_PROGRESS && DIALOG_INTF_PROGRESS, like on the Mac intf (not implemented in wx, IIRC) by using a QProgressBar inside the statusBar of the main Interface. Close #475 (longstanding one...)

Port some fixes from CVE-2008-0225 fix for xine-lib plus some code style fixes. Someone should really review it as it may be not fully fixed.

* Fix invalid memory access in Real Media SDP with tailored stream; reported
by Roland Kay. [bug #1602631]

CVS patchset: 8442
CVS date: 2006/12/25 16:21:56

* Fix program termination due to invalid Real Media SDP; reported by Roland
Kay. [bug #1602663]

CVS patchset: 8441
CVS date: 2006/12/25 16:12:16