Filter lasting power of attorney journey data

LPA Google Analytics events include a lot of junk data, so we should
remove as much of that as we can before we store it in Backdrop.
Add queries for collecting data across GOV.UK

We want data about how many views any page on GOV.UK has had as well as
information about in page searches for them.
Add service submission portal realtime collector

The query json was added but missed out from the cronjobs file.
Merge pull request #58 from alphagov/filter-lpa-journey

Filter lasting power of attorney journey data
Merge pull request #59 from alphagov/add-govuk-info-queries

Add govuk info queries
Add dummy webtrends credentials and token
Edit cron generator to support nas

also handles multiple credentials if necessary - credentials is a hash
Docs for webtrends