vp8dec: disable psb vp8 parameter interface work around

psb video has changed, we needn't this work around now
surface pool: add more debugs debugSurfaceStatus()
jpegdec: Add JPEG stream parser

Signed-off-by: Li Xiaowei <xiaowei.a.li@intel.com>
jpegdec: Add JPEG picture decoder

Signed-off-by: Li Xiaowei <xiaowei.a.li@intel.com>
jpegdec: fixes for mimeType and offset for next scan
replace G_N_ELEMENTS to N_ELEMENTS

in vaapidecoder_h264.ccp and vc1parser.c
fix some copy & paste mistake on file header
update README, AUTHORS, COPYING.LIB
update dboolhuff .LICENSE .PATENTS .AUTHORS

following Gwenole's update in gst-plugins-bad
update file headers

extends Intel copyright to 2014
add authors
h264dec: fix leak of surface bug.

 when a picture is not a reference frame and dpb is full, decoder outputs the picture directly.
 But the DECODING state of surface, current frame store, and current picture haven't been cleared.

Signed-off-by: Zhong Cong <congx.zhong@intel.com>