MJPEG Tools Svn

Added facility for padding frame buffers to support Altivec and other
alignment-picky SIMD instructions sets better.

merge change of MAIN branch to revision 1.17

merge change of MAIN branch to revision 1.90

AND, found some confounded '\n's in mjpeg_logging calls in *header* files.
Oh, the humanity....

Ooops... last-time, forgot to squeegy '\n's and '\r's from mjpeg_logging
calls in mplex's *.cc source files.

Fixed up tiny buglet, also improved end-of-configure synopsis, including
making the message for $have_large_file more clear....

Added stuff to configure.in to test for old vs. new(er) libdv (>= 0.9.5).
Added appropriate #ifdef's to lavtools to account for API changes in libdv.
(More work could be done for both, but this should get the job done for now.)

Ooops... some premature libdv changes slipped in to the previous commit.

Added a built-in "\n" to the mjpeg_logging default handler,
and removed all the "\n" and/or "\r" from calls to mjpeg_logging functions.
(Previous versions tagged as "pre_logging_LF_removal".)

All praise query-replace-regexp! Huzzah!

This commit was manufactured by cvs2svn to create tag
'pre_logging_LF_removal'.