Enable client library V2 to create an image.

Adds support for creating an image to the client library only, not the CLI.
Replaced reference to deprecated BaseException.message

Related to bp glance-client-v2

Change-Id: I8e3d09d89493368d22f7b1f69f79ebd2518e289d

glanceclient/v2/images.py

@@ -15,6 +15,8 @@
 
 import urllib
 
+import warlock
+
 from glanceclient.common import utils
 from glanceclient.openstack.common import strutils
 
@@ -90,6 +92,23 @@ class Controller(object):
         """Delete an image."""
         self.http_client.json_request('DELETE', 'v2/images/%s' % image_id)
 
+    def create(self, **kwargs):
+        """Create an image."""
+        url = '/v2/images'
+
+        image = self.model()
+        for (key, value) in kwargs.items():
+            try:
+                setattr(image, key, value)
+            except warlock.InvalidOperation, e:
+                raise TypeError(unicode(message))
+
+        resp, body = self.http_client.json_request('POST', url, body=image)
+        #NOTE(esheffield): remove 'self' for now until we have an elegant
+        # way to pass it into the model constructor without conflict
+        body.pop('self', None)
+        return self.model(**body)
+
     def update(self, image_id, **kwargs):
         """
         Update attributes of an image.