Revert "[release] version bump to 13.0 alpha12"

This reverts commit 73a66d7bbc0f592c08daa8c86a71d65a583491cf.
Fix build when IMX_PROFILE is defined
Be more permissive regarding avcc data to cope with HDTV
Fix HD liveTV issue where decoding falls back to software decoding
Fix to enable deinterlacing engine when required
Rework aspect ratio to avoid manual mpeg2 stream parsing
Contribution from Rudi (geexbox patch 26 rebased on latest branch)
Fix stupid redundant allocation
Thanks a lot to Jan for pointing it
WIP : Mainly solve the issue which results in V4L2 buffers not being
recycled when render thread drops the returned picture
Revert previous wip work to push indivdiual better indentified commits

This reverts commit 8cd6026fc15cd99eeb5a2cdd764456f553886576.
Additional tracking of V4L2 buffers
It ensures propers release even when the renderer drops a frame
Little rework of hw deinterlacing implementation
Cosmetics : Remove trailing white spaces
Avoid dynamic allocations for output pictures
and improved handling of outputBuffers
This commit is a merge of Jan's work. Many thanks to him
Fix 2 frames delay when progressive video is played
Use CBitstreamConverter for annex B / avcc stuff
Thanks to Jan for pointing this class