Iteration 18

-Added colored tags for when teamchat is disabled
-Modified XML reader and writer to include the new "team color" field
-Added the super-class method onLoad to the Tribal-Warz Central Plugin
class, which loads the XML file
-Added ENUM variable Team Color to TWTeam class
-Changed command structure so that only console can load and save teams,
toggle chat and team killing
-Added the heal team function, which heals all members of a specified
team
-Fixed team killing dialog, it was backwards before (would say it was on
when it was off)
-Enabled player logon and logoff listeners, so that it automatically
adds a player back to their team or removes them. Therefore, the
team-loading process is partially automated.