Ignore the gcloud sqlite file
Convert gcloud datetimes to ISO8601

These were working before we added json schemas because dateutil.parser
was able to parse them in backdrop. However, they are not ISO8601 so the
schema validation fails.
Fix DISABLE_COLLECTORS crontab generation

pp-collect will only disable collectors if it is set to the lower case
string 'true'. The crontab generation script was setting them to 'True'.
Merge pull request #80 from alphagov/fix-disable-collectors

Fix DISABLE_COLLECTORS crontab generation
Merge pull request #79 from alphagov/fix-gcloud

Fix gcloud