Also corrected a few minor formatting errors, file location and cross
references in some of the section 3 man pages.
This shuts up a lot of the output from "manck" for section 3.
o add missing man pages
o make all man pages clearly refer to the libcompat thingie
o add the information to the vtimes(3) and vlimit(3) man pages
that nobody has reimplemented the functions by now
o add the missing getpw.c
o add code and man pages for cftime(3) and
ascftime(3) -- i found them somewhere in old
unfinished work
Since functions will come and go from libcompat as they are deprecated
it makes no sense to build a shared library out of it as it will change.
Based on freedback from Terry and Jonas on the mailing lists.
