OR-843 Search communities by title using ES
OR-843 define the same API for all the isMember functions
OR-843 define the same API for all the isMember functions
Merge pull request #620 in OR/rse from OR/rse-chamerling:OR-843-invitables to master

* commit '1199d67fce1873d921e9e6d01f41277807e97da7':
  OR-843 define the same API for all the isMember functions
  OR-843 define the same API for all the isMember functions
  OR-843 Search communities by title using ES
OR-843 rebalance midway tests distribution to fix the timeouts