print 'in directory' announcement only if a chdir call was made
rename -T to -P to be more Rake compatible
mv $verbose to $conf; $showusage is @showusage now.
rm --usage
print clo error w/o ruby backtrace
mv $dryrun to $conf
mv $trace to $conf
more concise -h output
cleanup
add -P CLO
update rakefiles
fix directory target
update readme & fix version number