Move Yaml test defintions to a subdir for forwards compatibility

In the future those files will most likely be in a separate repo

test_elasticsearch/test_server/test_common.py

@@ -116,14 +116,14 @@ def construct_case(filename, name):
     return type(name,  (YamlTestCase, ), attrs)
 
 
-current_dir = abspath(dirname(__file__))
+yaml_dir = join(abspath(dirname(__file__)), 'yaml')
 # find all the test definitions in yaml files ...
-for filename in listdir(current_dir):
+for filename in listdir(yaml_dir):
     if not filename.endswith('.yaml'):
         continue
 
     # ... parse them
     name = 'Test' + filename.rsplit('.', 1)[0][3:].title()
     # and insert them into locals for test runner to find them
-    locals()[name] = construct_case(join(current_dir, filename), name)
+    locals()[name] = construct_case(join(yaml_dir, filename), name)