Fixed three stupid malloc bugs in xtag handling.
Phat Y4M Update:
o Updated yuv2divx to use revised Y4M API (missed it in the initial sweep);
Bug fix: si_framerate is needs to be coaxed to double...
sms's little patch to remove extraneous newlines from messages.
Changed to just use utils/libmjpegutils.a, instead of individiual .o files.
...cleaning up after myself.
Pulled y4m_ratio_t related stuff out of yuv4mpeg.c and stuck it into a