ATLAS-1629: updated copyright date in NOTICE file

NOTICE

 Apache Atlas (incubating)
 
-Copyright [2015-2016] The Apache Software Foundation
+Copyright [2015-2017] The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
@@ -19,4 +19,4 @@ Titan includes software developed by Aurelius (http://thinkaurelius.com/) and th
  * Dan LaRocque
  * Marko A. Rodriguez
  * Stephen Mallette
- * Pavel Yaskevich
\ No newline at end of file
+ * Pavel Yaskevich