Update Team.java

"Sets" should be "Gets" because the method is "getPrefix()" not "setPrefix()".
Merge #75

Thanks @Bionicrm

commit 6fb07d5217e92cd1229b78fbe9ec1a5e94e651fd
Author: Bionicrm
Date:   2014-02-27 20:17:31 -0500

Update Team.java

"Sets" should be "Gets" because the method is "getPrefix()" not "setPrefix()".