Adds option to unlock terminal by pressing L thrice

[abishekvashok]

Adds option to unlock terminal put into Cmatrix lock mode by pressing L thrice.

Updates man page with the minor change as well.

Fixes: #87 and #162 Signed-off-by: Abishek V Ashok [email protected]

[xgpt]

Would much prefer to see an option that requires the user's password, although it might suffice to just have a preset password inside of a user's home directory in the config file. A default password might work as well.

If one wanted to avoid PAM integration and just use. correctly permission'd file inside of a user's home directory that might work more easily.

I mean, that's secure enough for our SSH config files and whatnot, should be good enough to implement a shoulder-surfing-screensaver?

I think the use-case of using it as a screenlocker when you step away from your computer would be pretty awesome.

Honestly my coworkers almost certainly don't know linux so ctrl-alt-F1 is basically the same as winkey-L as far as practical efficacy goes to meet needed security for me personally..

[xgpt]

Just an idea