Add err handler on tcpout/listener. Fixes #50
update to mongodb node to allow both save and insert.
update sample to use environment variable for path to RED.
Make debug button move/partially hide when disabled to make it obvious. Also thicken border of node selected from within debug window - again to make it "pop" so it is obvious. Fixes #47
Add toggle button support to core, tidying up debug node
Make highlighted node more accessible
Remove unused style
Merge branch 'master' into tabs