Comment 4 for bug 719843

Just another thought on my questions (a) and (c) from comment # 3.

We need to be mindful of that fact that if a user is prevented from modifying their review for any reason (e.g. over time limit, over modify count limit) then with the current implementation of delete review, they could simply work around the restriction by deleting and resubmitting their review modified.

This means we would either need to:
(1) impose similar limitations on delete to those which we want to impose on modify, or
(2) allow modification without (much) limitation