blank app
added deps

    * ember requires jquery
    ** it also requires handlebars/emblem/htmlbars or another templating library
    ** ember version <-> handlebars version ambiguity

    * optional ember-data for persistance layer (!beta!)
    ** local storage adapter or another adapter
    ** another persistance library can be used - ember-mode, epf, restless,...
create application and define datastore

* App global variable will be used for storing all ember/app lifecycle objects (controllers, views,...)
** ember is based on conventions and it looks for these objects on this global object (naming is also based on conventions)
* local storage will be used for as data storage
create router