Add ability to see edit history.

[THElegend5]

Is your feature request related to a problem? Please describe.
Currently you can't see what you changed or what someone else changed.

Describe the solution you'd like
A page where you can see your own edit history from your profiles drop down menu. And a page where you can see a particular pages edit history would be nice to see what was changed. And would be easier to revert any changes if they were incorrect.

[bpepple]

I'm planning to add something like that in the future, but waiting for Many-to-Many fields (characters, teams, etc) history support to improve in django-simple-history, (they just merged diff support 2 weeks ago).

[THElegend5]

Also would be nice if people could leave comments where they could cite there sources and such so those editing something after them could cross reference the sources.