add an option to group lines from the same file - a blank separates them
add more local files which are temporary rubbish
fixed the usage message which accidentally escaped from the tab script
Make the -L switch work with -a; this shows the way to making -L and -s work together?
A quick hack to prepare the way for AND/OR/NOT pattern combos using brackets most likely. Also a compacting-cleanup of argument collection, and a small fix to make -J work
initial checkin