Utils to convert date/time and variable name (Python<->JSON).
Merge branch 'master' of github.com:CIRB/django-fixmystreet

# By CIRB Jenkins (4) and David Franklin (2)
# Via CIRB Jenkins
* 'master' of github.com:CIRB/django-fixmystreet:
  Back to development: 3.0.22
  Preparing release 3.0.21
  Back to development: 3.0.21
  Preparing release 3.0.20
  bug fix in the incidents table pagination
  translation