Fixed relative imports in apiclient
diff --git a/apiclient/discovery.py b/apiclient/discovery.py
index 36d38e7..a4202ae 100644
--- a/apiclient/discovery.py
+++ b/apiclient/discovery.py
@@ -33,11 +33,11 @@
 except ImportError:
     from cgi import parse_qsl
 
-from apiclient.http import HttpRequest
-from apiclient.json import simplejson
-from apiclient.model import JsonModel
-from apiclient.errors import HttpError
-from apiclient.errors import UnknownLinkType
+from http import HttpRequest
+from json import simplejson
+from model import JsonModel
+from errors import HttpError
+from errors import UnknownLinkType
 
 URITEMPLATE = re.compile('{[^}]*}')
 VARNAME = re.compile('[a-zA-Z0-9_-]+')