[PATCH 0 of 9] remove UI notification feature

[Thomas De Schampheleire]

Hello,

As discussed, this patch series removes the UI notification feature from
Kallithea. Notifications are now email-only.

This change simplifies the code base and will make later changes in the
email notifications easier.

The first three commits are not directly related to the removal, but are
small fixes noticed during the removal work.