* qatar/master:
ppc: fix build with altivec disabled
vp3: move idct and loop filter pointers to new vp3dsp context
build: add CONFIG_VP3DSP, reduce repetition in OBJS lists
tscc2: do not add/subtract 128 bias during DCT
tscc2: fix typo in DCT
configure: clarify external library section of help output
configure: mark libfdk-aac as nonfree
configure: cosmetics: drop some unnecessary backslashes
os_support: K&R formatting cosmetics
Conflicts:
configure
libavcodec/vp3.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>