Merge branch 'config_fix' into 'master'

Fix error message in read_json

See merge request !43

scripts/config_pull.py

@@ -167,7 +167,7 @@ class GitConfigPull(object):
                 scripts = result[json_key].get(cls.script_key, list())
                 return configs, scripts
         except (IOError, KeyError) as err:
-            if not os.path.exists(json_file):
+            if not os.path.exists(json_file.name):
                 raise IOError("Could not read file '%s'." % json_file)
             else:
                 raise KeyError("Error when parsing '%s': %s." % (json_file, err))