Add pagination to v1 image-list

* Use recursive generator function to make subsequent requests
  to the v1 detailed images resource
* 'limit' continues to act as the absolute limit of images to return
  from a list call
* 'page_size' indicates how many images to ask for in each subsequent
  pagination request
* Expose --page-size through the cli
* Convert v1 images tests to use strict url comparison
* Drop strict_url_check from FakeAPI kwargs - now the functionality
  is always active and tests must directly match fixture urls
* Fix bug 1024614

Change-Id: Ifa7874d88360e03b5c8aa95bfb9d5e6dc6dc927e

tests/v2/test_images.py

@@ -84,7 +84,7 @@ FakeModel = warlock.model_factory(fake_schema)
 class TestController(unittest.TestCase):
     def setUp(self):
         super(TestController, self).setUp()
-        self.api = utils.FakeAPI(fixtures, strict_url_check=True)
+        self.api = utils.FakeAPI(fixtures)
         self.controller = images.Controller(self.api, FakeModel)
 
     def test_list_images(self):