Merge branch '186-add-a-query-filter-to-sort-meps-by-active-constituency' into 'master'

Adding tests for filters

Closes #186

See merge request !191
2 jobs for master in 8 minutes and 36 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #1147
memopol
job test

00:08:16

90.0%
 
  Deploy
passed #1148
memopol
job install

00:00:20