This feature detects when Gertty is about to upload a review with
a positive vote after someone else has left a negative vote while
Gertty was offline. This prevents a situation where it appears
a user is ignoring negative feedback from others. The local user
is alerted and has the option to re-evaluate their review before
proceeding.
Change-Id: I838acaae6d12a2f8557bfd5a16837784c97c031a
35f5af52e7