"As a Curator, I want to get a count of reverted edits of a page, so that... (I can understand the amount of vandalism to the page?)."
Return summary of information in the edit history.
Request body: none
Notable request headers: none
200 - OK
404 - no such page
Notable response headers: none
Body: JSON, object with following fields
count: total number of reverted edits (TBD)