Added unit tests for AFP
feat(vagrant): add vagrantfile for running docker container

it will run 4 containers - mongo, redis, elastic and superdesk

SD-658
fix(docker): make tests run within container
fix(vagrant): tag superdesk server
AFP ingest urgency fix
Merge remote-tracking branch 'upstream/master'
fix(tests): make file metadata work with elastic
Additional tests have been added
Merge pull request #240 from petrjasek/master

feat(vagrant): add vagrantfile for running docker container