Added simple fix for OE-2752
Modified behaviour of expert/basic mode switch in Optic Disk doodle
Added doodles for current refraction
Avoid clobbering child savedParams in superclass
Another attempt to fix Optic Disc behaviour
Merge branch 'release/1.3-moorfields' into release/1.4-moorfields

Conflicts:
	js/ED_Drawing.js
	js/ED_General.js
	js/ED_Glaucoma.js
	js/OEEyeDraw.js