Bug fixes / enhancements from 0.6a to 0.7a

fixed problem with logging on to certain servers.

fixed problem dealing with muds that have single line prompts, 
where you wouldn't see the prompt because the client was waiting
for a carriage return.

major performance improvements to output window scrolling speed.
    (Should I allow the user to slow down scrolling now?)

slightly more responsive input window.

Bug fixes / enhancements from 0.5a to 0.6a

Fixed keyboard buffer arrow key GPF.
Saves screen wrap preferences.
Performance / appearance enhancements to output window scrolling.
Added user selectable text / background color.
