minor cleanup, documentation, and added -v verbose mode
Major redesign to be able to handle tip note lines.
In order to do that we need to process the previous line read, because it's only
after we've read the line AFTER the tip line that we know whether it's a tip
note, or another tip line.
Changed search options to start with "s".
Moved the tip file to under $HOME/.tiptool.
Added search all via regular expression