* enhancement: added contact info/comment field for each tunnel connection.
Allows for a short comment or an email address so you can remember who to contact for each tunnel.
The field is optional and does not need to be filled out to get a tunnel connection up.
Also cleaned up some of the layout on the tunnel pages and hopefully made it a bit easier to tell what is what.
Fixes#457
* added `maxlength='50'` to the comment/contact field.
50 characters should be enough for an email address or a short comment.
* Allow for spaces in the Tunnel contact/comment field
* aredn: Node Description Enhancements
Node Description entry on setup page is now multiline.
Fixes#91
Node Description display on status page is now a table cell,
allowing for background color addition and word-wrapping.
Fixes#90
Description background color added to CSS files with colors appropriate to each theme.
Other CSS additions for the description input field on the setup page.
Updated onboard help file about the node description field (and fixed a typo)
* move some of the character filtering "higher up the chain" in perl.
javascript still will replace any new lines with a space in case the user hit's enter in the description entry box.
tested with curl and I can't find any problems yet.
* removed some commented lines that were not needed
* actually fix the typo I saw in help.html file.
Eric