Add missing header to TreeBuilder.scala.

Author: baffles

codepulse/src/main/scala/com/secdec/codepulse/data/trace/TreeBuilder.scala

@@ -1,3 +1,22 @@
+/*
+ * Code Pulse: A real-time code coverage testing tool. For more information
+ * see http://code-pulse.com
+ *
+ * Copyright (C) 2014 Applied Visions - http://securedecisions.avi.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.secdec.codepulse.data.trace
 
 import com.fasterxml.jackson.core.{ JsonFactory, JsonGenerator }