updated for virtualenv
Changed cursor object order, skip must be added before limit
Added pep8 rule for linter
Fixed skip test
Merge branch 'hotfix/fix_skip_before_limit'
Add first method un query_set, retrieve the first object matching the query or return None
Merge pull request #3 from k3z/feature/Add_first_method_in_query_set

Feature/add first method in query set