Fixed a minor UI bug with respects to 0 controls created.
Forgot to add a crucial line for reloading.
Save all changes replaced Save button. Added validation to check for changes when editing/creating a new control. Made minor UI changes.
Fixed minor bug when pressing cancel with a delete.
Merge branch 'controls' into develop
Merge branch 'develop' of github.com:FraunhoferCESE/HazardTrackingSystem into develop

Conflicts:
	hts/src/main/resources/templates/ControlPage.vm