New features in sfind-0.94:

-	-perm option now supports the POSIX.1-2001 symbolic mode

-	-atime/-ctime/-mtime now support time specs like

		-mtime -3h20m

	Supported time spec letters are:

	s	seconds
	m	minutes
	h	hours
	d	days
	w	weeks
	y	years (non leap years with 365 days)