Don't hack the image url

It's actually breaking usage against HP Public Cloud.

Change-Id: Ic172786c6d1272798b768078a0bcf246f8d64ca8

Author: emonty

openstackclient/api/image_v1.py

@@ -19,11 +19,18 @@
 class APIv1(api.BaseAPI):
     """Image v1 API"""
 
+    _endpoint_suffix = 'v1'
+
     def __init__(self, endpoint=None, **kwargs):
         super(APIv1, self).__init__(endpoint=endpoint, **kwargs)
 
+        self.endpoint = self.endpoint.rstrip('/')
+        self._munge_url()
+
+    def _munge_url(self):
         # Hack this until discovery is up
-        self.endpoint = '/'.join([self.endpoint.rstrip('/'), 'v1'])
+        if self._endpoint_suffix not in self.endpoint.split('/')[-1]:
+            self.endpoint = '/'.join([self.endpoint, self._endpoint_suffix])
 
     def image_list(
         self,

openstackclient/api/image_v2.py

@@ -19,11 +19,12 @@
 class APIv2(image_v1.APIv1):
     """Image v2 API"""
 
-    def __init__(self, endpoint=None, **kwargs):
-        super(APIv2, self).__init__(endpoint=endpoint, **kwargs)
+    _endpoint_suffix = 'v2'
 
+    def _munge_url(self):
         # Hack this until discovery is up, and ignore parent endpoint setting
-        self.endpoint = '/'.join([endpoint.rstrip('/'), 'v2'])
+        if 'v2' not in self.endpoint.split('/')[-1]:
+            self.endpoint = '/'.join([self.endpoint, 'v2'])
 
     def image_list(
         self,