Refactor development flow

This lets you do a few things:

- [x] Host a webserver from root of site to mirror how it looks on prod
- [x] Task automation for compilation from source and livereload
- [x] Watch for file changes

To use:
```sh
$ npm install
``` 
^ install dependencies

```sh
$ gulp
```
^ run default gulp task - starts a server on `localhost:8080` and watches for changes, recompiling blog each change and livereloading browser