Merge remote branch 'qatar/master'

Merge remote branch 'qatar/master'

* qatar/master:
Not pulled due to wrong author, according to carl:  Add unconditional return statement to yuva420_rgb32_MMX() / yuva420_bgr32_MMX().
  Fix compilation of timefilter test program.
  Add support for AMR-WB encoding via libvo-amrwbenc
  Add an AAC encoder by using the libvo-aacenc library
  g722: Return 8 bits per sample for g722 in av_get_bits_per_sample

Conflicts:
	Changelog

Merged-by: Michael Niedermayer <michaelni@gmx.at>