track.el: "Unable to match.." message was wrong. Deal with no source-str better
/init.el: start adding clear command
send.el: start to add class name for upcoming jdb
Match on bashdb source text if that is there
Strip out ansi color codes when saving source text.
run.el: remove stray character in error message
zshdb: fix some stray typos, allow saving source code text.
Sync zshdb with bashdb. Get column numbers from source text if we can.
Track trepan2 source code lines
Merge branch 'master' into jdb

Conflicts:
	realgud/debugger/jdb/init.el
	realgud/debugger/zshdb/init.el