New Tests & BugFixes

-Added: Tests for the Copying of Collections.
-Fixed: PriorityQueues didn't have hashCode/equals/toString implemented

src/test/java/speiger/src/collections/tests/PriorityQueueTest.java

@@ -7,4 +7,5 @@ public enum PriorityQueueTest
 	PEEK,
 	REMOVE,
 	TO_ARRAY,
+	COPY;
 }