added header files for most of the logical units, which greatly
reduces the size of e.h. The dependencies are probably still a bit
too dense, I'll look at that next. Things don't get rebuilt completely
any more when efsd is updated. I've also started command line options.
Only version info and the display variable are recognized so far.
I see no warnings here on my machine. Hope I didn't break anything.
SVN revision: 5014
cpk