MJPEG Tools Svn

Sensible message if people attempt "make test"

Fixed small bug in tuned integer quantisation code.

Set up for building distribs with nasm produced binaries included.

Made installation of libs and headers needed for mjpegtools the default.

Tidying up for release to ensure it builds on "clean" systems.

First MMX for prediction computation, minor tidyings.

Yipes! I seem to be "Mr. nasty little bug" this week. Another subtle boo-boo
in the new motion compensation. Plus the rate control numbers needed
some tuning. Anyway all's well that ends well. Best speed numbers and *lowest*
quantisation on the test pieces.

Further minor updates to the doco files to get them into line for a beta
release.

Tidying in preparation for beta2 tarball release. Stale and scaffolding code
moved to attic. Command line flags etc brought into sync. Debugging output
conditional of DEBUG CPP macro.

Put Log substiution into ChangeLog

Bring up-to-date doco files and scriptology for next beta release.