version bump
Add paginated key lookups to message store.
Use paginated index queries in message store export HTTP API.
Merge branch 'feature/issue-855-pagination-for-streaming-message-export' into develop
Merge branch 'develop' of github.com:praekelt/vumi into develop
Added translation from RiakError to VumiRiakError
Added testing for VumiRiakError
Merge branch 'feature/issue-856-handle-riak-errors' into develop
Release version bump
Merge branch 'develop' into release/0.5.x