models: fixed docstrings syntax in Experiment.get_random_variant, ExperimentReport.generate
utils: fixed docstrings syntax in 'is_first_visit'
Merge branch 'master' of github.com:lookup/Splango
docs.source: added module 'utils' that includes function 'fix_django_settings'
docs: added .rst files generated by sphinx-apidoc, with some modifications.
docs.source.conf: fixed sys path to import 'splango'; added a workaround for Django settings issue.
Merge branch 'master' of github.com:lookup/Splango