fix typos, including a severe one

bugfix see configurator.py:233

btw, pycharm does detect a lot of these automatically in the IDE (e.g. for typos it "underlines" the mis-spelled words. it also detects a lot of other issues, like pep8, coding mistakes, etc.).

if you don't know pycharm, maybe give it a try. as a opensource project, you maybe can even get a pycharm license for all developers working on the project.
We definitely should... eventually... I have avoided that function thus far because I think the functionality will have to change slightly... (when it is difficult to determine the right vhost.... though I do have some ideas.) This process is really important to get right. Once you have the correct vhost... everything is easy.  

I got pulled away temporarily to work on the client challenges interface... which has required some finesse in order to deal with multiple challenges at a time (for different domains... ect) and different Authenticator capabilities. So I was going to patch that section first (with unittests) and then get back to testing/making sure the code is what we really want for the configurator. (I especially have concerns over the redirect code)

Feel free to edit/add any code you think is needed... I have been working down in the dvsni cleanup branch. My most recent edits (not committed) are in obtain_cert / verify_identity in client.py. I may be a little slow responding today as I am travelling. If you want to take control of a particular area and don't want me to mess with it for awhile... let me know.