Now that it's "working" again, KB0WLF can find further problems with this stuff.

(Can check console.terminal for this value at the top of logon.js, and launch ax25shell.js if so.)

If text/badwords.can exists, will mask those words before sending them to an AX.25 client from an rlogin tunnel.
(This could be moved into the AX25.Client object in kissAX25lib.js instead, at some later date.)

(Will make it possible to map each of a user's 16 available SSIDs to a particular service later on, using eg. VA7RRX-0 for RLogin, VA7RRX-1 for QWK networking, etc.)

Gates between AX.25 unproto clients and the terminal server (rlogin).
Still a work in progress; new user account creation improvements forthcoming.
A command shell geared toward these clients will appear in the near future.  It works passably well with classic_shell.js for the time being.

Respect the new ax25Client.wait property; don't send any I frames to the client until this is false try reading bibble.

A few other small changes.