fix encoding problems in python2 for travis

test/test_regression.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
 """
 Unit tests to avoid errors of the past. These are also all tests that didn't
 found a good place in any other testing module.

test/test_unicode.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 """
 All character set and unicode related tests.
 """