Start of optimistic updates
Remove favorite success
DM Delete & RT semi optimistic.

RT is tricky, but the success has been removed.
Change Block/Report Spam to be optimistic
Re-Add DM if delete fails
Changes to make RT optimistic & show icons straight away, but remove them if it fails
Update changelog for this set  of changes
Change to make RT UI use callbacks as the alert dialogue to RT type is non blocking
Added logic so the UI knows things have changed on RT/Fav so it can re-draw
Correct issue with crittersism report username
Merge pull request #350 from BlythMeister/MyBetaVersion

Fix for #346 & #347
Merge branch 'Upstream_release' into Upstream_develop