Updates to VP8 wrapper:
1) Added VP8E_SET_STATIC_THRESHOLD which sets threshold for
   forcing static macroblocks to skipped mode
   (useful for encoding of static background).
2) Removed some code in decoding to allow for 
   decoding of incomplete frames.
3) Minor change to MaxIntraTarget()
4) Added control setting for maximum (target) size of 
   intra-frame.
5) Increased kf_max_dist(reduce/remove key-frame periodicity)  
   since we use kf_auto_mode. 
Review URL: http://webrtc-codereview.appspot.com/101001

git-svn-id: http://webrtc.googlecode.com/svn/trunk@314 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed