configure: Split x86 SIMD architecture extensions into separate list

This avoids checking inline/external assembly dependencies for x86
extensions that do not play a role in inline/external assembly.
build: Let the SVQ3 decoder depend on the H.264 decoder

The SVQ3 decoder reuses large parts of the H.264 decoder so it
makes no sense to enable the former but not the latter.

Also drop unnecessary h263.o object from SVQ3 decoder object list.
mxf: Introduce ff_mxf_get_samples_per_frame

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Correct the FSF address for two avisynth files to '51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA'

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fix spelling error 'Inconsistant -> Inconsistent'

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fix spelling errors in texi files: accomodate -> accommodate allows to -> allows one to choosen -> chosen compability -> compatibility explictly -> explicitly overriden -> overridden specifed -> specified Trasmission -> Transmission

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '84bf8817206126dab3c9abf6055b593389bcb241'

* commit '84bf8817206126dab3c9abf6055b593389bcb241':
  configure: Split x86 SIMD architecture extensions into separate list

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'd48430c367947a64647c6959cf472f2c01778b17'

* commit 'd48430c367947a64647c6959cf472f2c01778b17':
  build: Let the SVQ3 decoder depend on the H.264 decoder

Conflicts:
	libavcodec/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'e118bb1a33889d4df56f28975b4fd0793b4f5c32'

* commit 'e118bb1a33889d4df56f28975b4fd0793b4f5c32':
  mxf: Introduce ff_mxf_get_samples_per_frame

Conflicts:
	libavformat/mxf.c
	libavformat/mxf.h

See: 906a2638139bfcce17d423cfa3a8ee633b38a2af
Merged-by: Michael Niedermayer <michaelni@gmx.at>