Populate dev database with topics/comments/... on init
I think it'd be a nice thing and save people some time to have some topics and comments already made (and maybe more stuff like other users) in the dev environment.
For anyone wondering (like myself) where the initial TestUser gets added, it's here.
(Also, maybe there should be a label for things specifically related to the dev environment. code and tweak aren't really proper descriptions for these changes in my opinion. #283 is another that would fall under this category.)