Build System for our Website

Getting started

Make sure the submodules are checked out. This may take a while!
```
git submodule update --init --recursive
```
Run pelican once to sort out any configuration issues there may be:
```
make
```
When that works, use the following to start a devserver listening at http://localhost:8000:
```
make devserver
```

See http://docs.getpelican.com/en/stable/ for general documentation Pelican, used to build the website.