Error in Parsing IRC messages including :

message_handler does not retrieve the entire length of messages sent by users if the message includes `:` and will terminate one character before `:` is encountered. 

Examples:

User's message | message_handler receives
------------ | -------------
abc abc | abc abc
Items : Sword | Items
tt:t|t
t:t|

The culprit seems to be `parts = line.split(":")`  in wrapper.py