Remove the GCloud query as it doesn't work yet

tools/cronjobs.py doesn't support gcloud yet and the collector doesn't
support no credentials being inputted, when gcloud doesn't need it.
Create a renew patent dashboard
Add a prototype collector for realtime by section graphs.

Counts the number of active users on each page within the service.

We can roll this up client-side into active users in each section.

This will let us create a realtime graph of users per section,
to delight service managers.
Add a collector for 'time taken to complete transaction'.

Looks at the average session duration for sessions including
an event.

Points that need clarifying:
* Can we do this with pagePath rather than events? I believe we
  can, because Ben Holliday's GA graph is based on pagePath,
  but I get weird results from the API when I try with pagePath.
  It would be great to use pagePath rather than events because
  then we aren't reliant on Stageprompt.
* Adding dimensions: Ben wants to be able to filter the graphs
  by particular type of user, e.g. people who don't complete
  the education section. How much can we add in the dimensions?
Add collector for additional section-level metrics.

This is used to make two new graphs on the CA dashboard: exit
rates per section, and time spent per section.

In the dashboard config in Spotlight, we then specify which
section paths we want to show on the graph.

Details of the collector:

* Adding 'pagePathLevel1' to the dimensions lets us roll up the
  metrics by top-level sections of the site: so for example, we
  get metrics for /allowance/about-you and /allowance/your-details
  back as one data point, /allowance.
* We use the 'avgTimeOnPage' metric to calculate the average
  time spent within each section, and the 'exits' and 'users'
  metrics to calculate the overall exit rate within each section.

In theory we should be able to use the 'exitRate' metric to measure
exit rates, but I'm not convinced this is working at the section
level.