[OE-4245] renamed visual acuity element
Revert "[OE-4245] renamed visual acuity element"

This reverts commit 0410660b074216317af4c4323bed930a2f60424f.
fix database reference in migration
fix database reference in migration 2
Merge branch 'release/1.7' into develop
[OE-4414] Replace attribute options loop to prevent skipping
Merge branch 'release/1.7' into develop
Merge branch 'release/1.7' into develop
Merge branch 'release/1.7' into develop
Merge branch 'release/1.7' into develop
+ [OE-4479] Make CCT standalone element
+ [OE-4581] update release notes
Merge branch 'master' into release/1.7
Merge branch 'release/1.7' into develop
+ [OE-4523] restore IOP default value.
[OE-4325] Allow viewing history for visual function and colour vision.
+ [OE-4597] implement support for default entries to appear in VA and IOP, and remove default values.
+ [OE-4597] handle empty value for va unit tooltip
+ [OE-4597] correctly handle empty value for va unit tooltip
+ [OE-4597] default text for tooltip when no VA value selected