Hawtio web console does not handle password well if it contains character ':'

Hawtio web console does not handle password well if it contains character ':'.

Here is how to reproduce the issue:
Create a new user with password contains ':' character, for instance:

testuser=Adec1:123,admin

and then use this user to connect to SSH console, it works. But if use this user to login to Hawtio web console, it fails.

I also tested some other special characters in password, like '!', '#', '$', '%','@', '^' and '&' and '*', then all worked fine. Perhaps we should also test all of non-alphabetic characters to be sure.