Comment 0 for bug 1734174

We need to make a series of changes in Mahara to comply with the GDPR. More info is available on the wiki at https://wiki.mahara.org/wiki/Developer_Area/Specifications_in_Development/GDPR_compliance

The following should be possible (note: T&C refers to the general agreement and also any specific explicit consent):

1. When site T&C change, user needs to accept them again.
2. When institution T&C change, user needs to accept them again.
3. When user joins a new institution, they need to agree to the new institution's T&C.

If only site or institution T&C change, the user should still be presented with all T&C but it should be clear which section has changed, e.g. show the institution T&C in a non-retracted panel but the site T&C in a retracted panel so they can read them again, but it's clear which section needs approval.