created some new (and better) seeds :seedling:

I added the faker gem and created some seeds with it that should be
easily modifiable.
basic filtering :penguin: but no caching

so basic filtering works but it's probably crap because I make a new
AJAX request every time and there's probably a way to cache results.
But f*ck it. It works for now.
Merge pull request #42 from rcsole/filter-members

Filter members, closes #40