Add ban username and hostname user options
Add userName and hostName variables to user object
Add parsePrefix function that will replace getUser

In addition, removed some logging to make debugging easier.
Ensure userName/hostName is not null before banning
Gather userName and hostName from RPL_WHOISUSER and RPL_WHOREPLY
Ensure that hostname ban is handled correctly
Merge pull request #56 from coldstorm/user-options

Add more ban options in user options menu