configure: Disable i686 for i586 and lower CPUs
dca: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
Add a closing LF to Webm-manifest files.

Fixes fate-webm-dash-manifest on AIX.

Reviewed-by: Nicolas George
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Add a closing LF to Webm-manifest files.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '9030c58a780a02fb8256cb75cd39275eaad786d1'

* commit '9030c58a780a02fb8256cb75cd39275eaad786d1':
  configure: Disable i686 for i586 and lower CPUs

See: cdb3eee7c496f763d195de34be7f67783b98fb2c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '45ff7c93dd84a254cc96acc589e5ac3d7bd16bce'

* commit '45ff7c93dd84a254cc96acc589e5ac3d7bd16bce':
  dca: K&R formatting cosmetics

Conflicts:
	libavcodec/dca_parser.c
	libavcodec/dcadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/ass: make sure the log level are in available range
avfilter/ass: better log level mapping
avfilter/ass: add shaping option

The documentation is mostly based on ass.h public header.