dsputil: Split off quarterpel bits into their own context
Merge commit '368f50359eb328b0b9d67451f56fda20b3255f9a'

* commit '368f50359eb328b0b9d67451f56fda20b3255f9a':
  dsputil: Split off quarterpel bits into their own context

Conflicts:
	configure
	libavcodec/dsputil.c
	libavcodec/h263dec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/vc1dec.c
	libavcodec/vc1dsp.c
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/qpeldsp.asm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
linzhbj merge our test code
add vsx to configure
all fft_vsx ok
test vsx
changed fft.h
test ok
linzhbj merge our test code
all fft_vsx ok
test vsx
changed fft.h
test ok
all fft_vsx ok
all fft_vsx ok
test vsx
changed fft.h
test ok
all fft_vsx ok
test vsx
changed fft.h
test ok
changed libavcodec/ppc/fft_vsx.c 20140525 - 001
all fft_vsx ok
test vsx
changed fft.h
test ok
all fft_vsx ok
test vsx
changed fft.h
test ok
all fft_vsx ok