BrowserSync serve baseDir

[maikeldaloo]

Hello,

Nice work on Pudl :) I was just trying it out and found 1 simple bug:

I set it up so that I have a src and a dist directory. I got the files to compile to the correct directories by changing config.js, but the only thing missing was that browserSync would serve from the root directory. I had to manually go into gulpfile.js and update the config with:

// Instead of:
server: true,

// I used:
server: {
  baseDir: "./dist/"
}

I guess this could be easily fixed by adding an option to config.js to allow users to change the serve directory.