bob() and livePreview() - js

* readme.md : a few typo fixed.
* controllers/_database.php : Instead of directly return $_message now
it's stored in $_POST['message'] to be displayed in views (not yet
displayed).
* views/admin.contents.php : First implementation of livePreview() and
bob() - see main.js.
* views/css* : A few lines of styles.
* views/js/main.js : Coded bob() that makes able to use Emmet for
Sublime Text like syntax - still needs some improvments. And also coded
a livepreview() object to preview the content while writing.
* views/view.contents.php : Renamed to view.content.php.
* views/view.index.php : Moved "Read More" on right side.