fix #18: inverse the coding and shebang line

examples/models/dmp.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """Provide some examples using DMPs.
 """
 

examples/models/gmm.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """Provide some examples using GMMs.
 """
 

examples/models/promp.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """Provide some examples using ProMPs.
 """