Refactor amon into separate namespaces.
Temporarily comment out system so it compiles.
Don't stringify device's metadata on GET.
Add x-axis interval and y-axis unit.
Merge branch 'feature/chart-improvements'

* feature/chart-improvements:
  Add x-axis interval and y-axis unit.
Rename ns's and standardize resource names.
1st cut rejig to new code style.
Remove unused argument.
measurements - 1st cut rejig to new code style.
Fix typo.
Fix destructuring in measurements.
measurements - unwind more destructuring.
entities - 1st cut of rejig to new code style.
programmes - 1st cut of rejig to new code style.
projects - 1st cut of rejig for new code style.
properties - 1st cut of rejig to new code style.
Use webutil/routes-for
sensors - 1st cut of rejig to new code style.
apply anna fixes.
Fix broken build.