Code review comment for lp://staging/~thedac/simplestreams/lp1611987

When using my fix in the MP and ppa:smoser/sstream-ks3 version 0.1.0~bzr426-0ubuntu1.3~ppa0

I get the following error that is unrelated to my change. This seems to be a missing commit in the ppa:smoser/sstream-ks3 version.

Traceback (most recent call last):
  File "/usr/share/glance-simplestreams-sync/glance-simplestreams-sync.py", line 473, in main
    do_sync(charm_conf, status_exchange)
  File "/usr/share/glance-simplestreams-sync/glance-simplestreams-sync.py", line 246, in do_sync
    tmirror.sync(smirror, path=initial_path)
  File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 91, in sync
    return self.sync_index(reader, path, data, content)
  File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 254, in sync_index
    self.sync(reader, path=epath)
  File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 89, in sync
    return self.sync_products(reader, path, data, content)
  File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 346, in sync_products
    (prodname, vername))
  File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/glance.py", line 368, in insert_version
    self._insert_item(*iargs)

Sure enough _insert_item does not exist in this version although it does exist in tip of lp:simplestreams.