Added grunt building of thesis

All of the site files are hosted at git repo root/something.html. For example, index.html, proposal.html, etc.
To build (from git repo root)
```
cd build
```
```
grunt thesis
```
Hopefully oou see this:
```
➜  build git:(master) grunt thesis
Running "ejs_static:thesis" (ejs_static) task

Done, without errors.
```