staff -> admins

* rename everything containing staff back to admin (as requested by ryan i've renamed commands like slconfig to saconfig but left "slconfig" as an alias)
* format almost every file correctly
* a few other improvements

src/main/java/me/totalfreedom/totalfreedommod/banning/IndefiniteBan.java

@@ -60,4 +60,4 @@ public class IndefiniteBan implements IConfig
     {
         return username != null;
     }
-}
+}