- destroyDraft which is called when we cancel a draft is now async,
removing race conditions when you click "reply" to a post and are
already editing. We used to trigger double dialogs for cancelling
drafts which was confusing.
- Remove reply as new topic / reply as pm keys, they are no longer
used and only caused confustion. For example we used to pop up a
warning when you are composing a reply and flick to reply as
new topic
- Remove createTopic key, this was a bug that proliferated. Whenever
creating a topic via the C shortcut or clicking on new topic on full
screen search the correct new topic draft key will be used
consistently
- When abandoning an edit we now say "Are you sure you want to discard
your changes" (instead of abandon your post which is confusing)