Unassuming Make

I made a few changes to the FATE script tonight: the {MAKETEST} substitution is now configurable from the fateconfig.py file; can you believe not all systems have GNU make as the default ‘make’ command, and dare to put it in locations other than what I originally assumed and hardcoded? The script makes it easier to deal with those deviant outliers. Also, if you have been running the FATE script, wipe out your old source/ directory before running this new version. Otherwise, it will complain about a repository mismatch because I finally updated the SVN strings to point to ffmpeg.org rather than mplayerhq.hu.