[OE-2473] initial work on dilation element
[OE-2473] implemented dilation element.
removed accidentally committed line
[OE-2473] disabled enter key in dilation time text inputs.
[OE-2473] dilation element bugfix
[OE-2518] fixed dilation drugs not saving correctly
[OE-2518] fixed saving and displaying of dilation drugs.
Merge branch 'release/1.2-moorfields' of github.com:openeyes/OphCiExamination into release/1.2-moorfields
[OE-2553] fixed exception when dilation element is saved with no data
Merge branch 'release/1.2-moorfields' into feature/glaucoma

Conflicts:
	assets/css/module.css
	assets/js/module.js
	models/SplitEventTypeElement.php