extern and color help

[papajoker]

help in extern file ans small ability to use color with double characters: bold: text red: !!text!!

[neton-bricio]

Awaiting rulings of other developers. For me it's a great idea. This makes it simple

[Chrysostomus]

I'm fine with the change, it also makes the script itself shorter and cleaner. The help page is a bit long for here document.

Help page is excaliburs speciality, so let's hear what he has to say before merging.

[neton-bricio]

Ok @Chrysostomus.