Have a look at this: http://substance.io/ http://substance.io/ I'm working on something similar: https://wikidocs.com https://wikidocs.com. Although our's clos

Have a look at this: http://substance.io/ http://substance.io/ I'm working on something similar: https://wikidocs.com https://wikidocs.com. Although our's closed source at the moment (can't say whether or not it will remain closed), we will provide a downloadable package you can run yourself.