Just some changes

* moment.js 2.0.0 replaced with its newer version from develop branch of timrwood/moment because it contains recently added by me Persian support but it is stable enough because it pass all unittests from moment.js and Persian. tested on a commafeed instance and was okay. With release of moment.js 2.1.0 the stable version can be used again.
* Better favicon made using [ImageMagick](http://stackoverflow.com/a/16922387/1414809), `convert app-icon-16.png app-icon-64.png app-icon-128.png favicon.ico`. It seems more compatible and valid in browsers somehow
* Just a little modification done on ebraminio theme to make buttons and other font same other web elements. Feel free to move this part to commafeed themes if made sense.