Make Discard changes/Provisional draft more visible

[lenvanessen]

We've had numerous occasions where authors are not seeing the most recent version of an article in the CMS system, and then come to us complaining that the CMS is broken. Most of the times, its because they (accidentally) created a privisionary draft, and don't see the "discard changes" button. And for some, they also just don't understand exactly how it works.

Perhaps we can make it a bit more visible and explantory, just as the bright yellow box shows up after changes have been merged into drafts.