use working material bootstrap package

use working material bootstrap package
This doesn't include the `material-design` package because of the way we added it (cloning a git repo inside another git repo). You can confirm this by trying to clone this repo and seeing that this package is missing. You should either add `meteor-material-design` as a submodule of this repo in this directory, or clone the `meteor-material-design` repo in this directory but remove the `.git` directory inside.