WIP - adding monthly response class
First stab at some statsd reporting
Add month timeseries
Add response class for monthly grouped data
Make PeriodData class work for months and weeks
Allow bucket to be provided to statsd.StatClient.

Prefixes the bucket name to the application part of the stat key.
Add bucket name to statsd stats.
Prefix 'unknown' to stat if no bucket is provided.
Merge pull request #74 from alphagov/csv-uploads

Csv uploads
Merge branch 'master' into add-statsd

Conflicts:
	backdrop/write/api.py
PEP8
PEP8

One new line character at the end of the file but *not* another one because that would be a crime!
Add ability to group by months to query object
Rename method for doing period grouping
Check PEP8 in Travis CI

It can fail a build in Jenkins so it should fail the build in Travis.
PEP8
Set _month_start_at on incoming event data.

@gtrogers
@robyoung
Fix migrations

They had got out of sync with the code base.

- Import the utc method from bucket
- Import the config module in a more robust way so that the tokens can be imported as well.
Merge pull request #75 from alphagov/add-pep8-to-travis

Check PEP8 in Travis CI
Merge pull request #76 from alphagov/fix-migrations

Fix migrations