Brady pythonify

Hey I got kind of bored and started playing around with Rank Panda again.  One thing I found was that I was able to get it to work with python 2.7.  So I updated the README to reflect that.  I think the other changes I've made were fairly minor (but those were done a while ago...).  But I remember finding the python 2.6 download page was kind of difficult, plus its old and people should be using 2.7.