Added "abuse" alias for sysop.

Added more comments regarding supported line formats.

ctrl/alias.cfg

-; Alias                 User Name or number
+; Alias                 	User Name, number, or forward address
+; -------------------		-------------------------------------
+; wildcards (*) are allowed	wildcards (*) are allowed
+; can be <name>			can be <name>
+; or <name>@<address>		or <name>@<address> 
+;				or <name>@<address>:<port>
 
-root			sysop
-sysadmin		sysop
-webmaster		sysop
-great.drummer		Rob Swindell
+root				sysop
+abuse				sysop
+sysadmin			sysop
+webmaster			sysop
+great.drummer@*			rob@synchro.net