Todo

For version 1 (stable)

[ ] Write tests [ ] Run them with Travis [ ] close popup in view-version [ ] move page out of bin [ ] wheel

For version 2

[ ] Create a PageVersion before user makes ‘Revert to live’ (issue #29) [ ] Delete PageVersions (issue #20) [ ] Auto saves (#19) [ ] Backup: Create a tagged PageVersion of all sites (#18) [ ] Attributes for PageVersion: tag, was_published... (#17)