Merge pull request #1829 from vlajos/typofixes-vlajos-20150807

typofix - https://github.com/vlajos/misspell_fixer
(cherry picked from commit b7baa899e271fd13f17592be015b8bf066c17245)

Signed-off-by: Aanand Prasad <[email protected]>

tests/unit/config_test.py

@@ -9,7 +9,7 @@ from compose import config
 
 def make_service_dict(name, service_dict, working_dir):
     """
-    Test helper function to contruct a ServiceLoader
+    Test helper function to construct a ServiceLoader
     """
     return config.ServiceLoader(working_dir=working_dir).make_service_dict(name, service_dict)