bug 867603 - upgrade to bugzilla api version 1.3

@rhelmer r?

I tested it and the only noticable difference in our usage is that the 1.3 version always includes a key called `resolution` for every bug. We're asking for the following fields: `[u'summary', u'status', u'id', u'resolution']` and in 1.3 you always get them back with or without data. In the case of `resolution`, before it would simply not be included, now it's included but returned as an empty string. 

Since this is only a change to local.py-dist we're going to need to file bugs to have webops change the other local.py files.