Cluster hierarchy and authentication integration (issue #15)
Update phpdoc about clusters names
Fix issue #16
Add reservations made for a specific thing endpoint.
Merge branch 'feature-cluster' into development

Conflicts:
	app/controllers/ReservationController.php
Merge pull request #18 from FlatTurtle/feature-reservationsbything

Add reservations made for a specific thing endpoint.
changed user to cluster
Fix issue #17 and #19
Merge pull request #20 from FlatTurtle/feature-cluster

Fix issue #17 and #19
Update documentation
Made example json valid for PUT /things/{thing-name}
Merge pull request #22 from FlatTurtle/development

Development