Added method for retrieving the last N measurements of a session with a certain property. (#190)
API now returns session measurements instead of last updated time. (#190)
Merge branch 'master' of github.com:ami-lab/AmI-Platform into f/#184-compute-skeleton-joints-coordinates-fix-track_event-usage
API endpoint now also returns the last measurements with x, y, z, t. (#190)
Merge pull request #217 from ami-lab/f/#190-API-endpoint-for-retrieving-active-sessions

F/#190 api endpoint for retrieving active sessions
Merge pull request #214 from ami-lab/f/#184-compute-skeleton-joints-coordinates-fix-track_event-usage

room_positon sends now a proper info message with track_event
Merge branch 'master' into f/#187-API-endpoint-for-retrieving-properties-of-a-sid-t-pair

Conflicts:
	api/api.py
	test/api/test_api.py