fixed suppress warning.

Author: Ryan

src/main/com/mongodb/LazyWriteableDBObject.java

@@ -64,7 +64,7 @@ public void putAll(BSONObject o) {
 	/* (non-Javadoc)
 	 * @see org.bson.LazyBSONObject#putAll(java.util.Map)
 	 */
-	@SuppressWarnings("rawtypes")
+	@SuppressWarnings("unchecked")
 	@Override
 	public void putAll(Map m) {
 		writeable.putAll(m);