Some type safety, redundant cast removal, and other code hygiene.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4879 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/util/ClassUtil.java

@@ -47,7 +47,7 @@ public class ClassUtil
     {
         Class tclass = target.getClass();
         String key = tclass.getName() + ":" + name;
-        Method method = (Method)cache.get(key);
+        Method method = cache.get(key);
 
         if (method == null) {
             method = findMethod(tclass, name);