[OE-2848] added visual fields element to examination.
[OE-2847] new dropdown values
[OE-2765] added a field to the cataract management sub-element to indicate whether the examination relates to the first eye or second eye.
Merge branch 'release/1.3-moorfields' into release/1.4-moorfields

Conflicts:
	models/Element_OphCiExamination_CataractManagement.php
+ fix to dilation to handle clearfix tweak to eventDetail style
[OE-2941] made description fields mandatory in the gonioscopy element.
Merge branch 'release/1.3-moorfields' of github.com:openeyes/OphCiExamination into release/1.3-moorfields
[OE-260] Site_id moved from cookie to session
Optic disc mode controlled through binding rather than explicit js
[OE-2752] Make C/D Ratio input "read only" when in expert mode to avoid
mismatch
Merge branch 'release/1.3-moorfields' into release/1.4-moorfields
[OE-2806] made optic disc descriptions mandatory.
[OE-3001] Fixed sidedDefaults
Remove unused methods
[OE-3011] Override element options setting for step action
[OE-3000] Fix adding invalid dilation via keyboard
[OE-3018] show "not recorded" when the visual acuity element is saved with a comment and no data.
Merge branch 'release/1.3-moorfields' of github.com:openeyes/OphCiExamination into release/1.3-moorfields
[OE-3018] show not recorded in the correspondence visual acuity letter string when the va element was saved with a comment but no data.
[OE-3016] updated icon