fix #18: inverse the coding and shebang line

examples/imitation/demo.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """Imitation learning demonstration using DMPs and ROS with the Franka robot.
 """
 

examples/imitation/trajectory_reproduction_kuka_dmp.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """Example on how to use an imitation learning task in PyRoboLearn using Dynamic Movement Primitives as a policy,
 and a mouse keyboard interface.
 """