Merge pull request #28 from byteme/master

Requirements fix.
Merge pull request #34 from byteme/master

Login url fix in template.
Reformatted code to pep8 standards
Category url regex fix
Merge branch 'master' of https://github.com/ipri2013/l2ranking
Merge pull request #35 from krsh89/master

Pep8 and category slug url fix.
Merge pull request #4 from ipri2013/master

Update