Change the permalink format for project pages.

Use the permalink format `/projects/:title/index.html` instead of the
default `/project/:year/:month/:day/:title.html`
Remove unused data layout permalink

Disappointingly, I don’t *think* you can do this in Jekyll. It would be
awesome if you could.
Add “more info” links to project index

These link to the individual project pages, much like the member pages.
Merge pull request #51 from andylolz/master

[projects]: Add links to individual project subpages.