Fix httptools (relative import, its not the pypi package of the same

name)

Author: tony

qencode/client.py

@@ -1,7 +1,8 @@
-from httptools import Http
-from metadata import Metadata
 from task import Task
 
+from .httptools import Http
+from .metadata import Metadata
+
 
 class Client(object):
     def __init__(self, api_key, api_url=None, version=None):