convert ocean story js to CommonJS modules, and add webpack to build
add webpack task to gulp default task
gulp watch task now runs webpack-watch and browser-sync

woot!
require lodash as commonjs, and use the node module instead of bower
for now, make openlayers an external
put bundles in marco_site/static, for now
Merge pull request #28 from point97/webpack_commonjs

Implements webpack/commonjs for ocean story javascript