chore(app): move to app folder
chore: app, public

* move non-optimized things to public
* compile app folder html, css, js to public
* server static page in public using connect
* build task with gulp gh-pages --require LiveScript
chore(gulpfile): add dev, public tasks
chore(gulpfile): move files to vendor

* public dir is output only
chore(gulpfile): add release task