Log changes.
Move remel() from Util.pm to main module.
Needed to take an attribute into a var for a regex subst.
Added a simpler 3-bit test as 02run.t; bumped the other files' number up by one.
Many changes in 'has' attributes; broke up some map/grep chains.
Note changes.
Removed map op from find_essentials; use simple if instead.