0.7.2.16:

0.7.2.16:
	Fix bug 160 (USER-HOMEDIR-PATHNAME)
	... new uid_homedir function in wrap.c
	... wrap it up some more in unix.lisp
	... actually use it in filesys.lisp
	Also fixes to namestring parsing
	... treat potentially logical pathname namestrings correctly
	... remove last vestiges of search-list parsing from
		unix-namestring parsing