- remove inactive user report and replace with posts
- clean up internals so grouping by week happens on client
- when switching periods old report was not destroyed leading to bugs
- calculate trend based on previous interval ... not previous 30 days
- show percentages for mau/dau
- be more careful about utc date usage
- show uniqu and click through rate on search panel
- publish key of report with report so we only load the correct one
- subscribe earlier in channel in case of concurrency issues
* `1.month.ago + 1.month` uses the calendar month for calculations
such that `1.month.ago` from the 30th of March 2017 will give
us the 28th of February 2017. Adding one month ahead from
28th February 2017 will be 28th of March 2017.
