CRATEIT-124: Adds epub generation
CRATEIT-124: Adds unit test for ePub download
MISC: Adds unit tests for downloading a crate
CRATEIT-124: Adds UI test for ePub download
Merge branch 'master' of github.com:IntersectAustralia/owncloud

Conflicts:
	apps/crate_it/controller/cratecontroller.php