footer with discreet IPython version

Cause it is true that it is difficult by just staring at the screen to guess IPython version, will be even more as the UI stabilize.
Asking user to type things is kinda difficult sometime.

"Scroll down and look at the bottom-right corner of the screen, do you have 3.0 version or above" is easier. 

![capture d'écran 2014-09-26 a 15 42 56](https://cloud.githubusercontent.com/assets/335567/4421307/c6b1336a-4582-11e4-92ba-aee6aab2e7dd.png)

I'm wondering should we have `IPython-Server vX-Y-Z` less confusing than using IPython for everything.
Should I include commit-ish for dev ? 
Seriously considering a more informative `About` dialog.

Yes, the implementation is wonky, cause of that #$%^ pager that imply that not the same div scrolls depending on  pages. 
rebased and typo fixed.

Le 12 oct. 2014 à 11:54, Damián Avila <notifications@github.com> a écrit :

> In IPython/html/static/notebook/js/about.js:
> 
> > +// Distributed under the terms of the Modified BSD License.
> > +
> > +
> > +require(['jquery','base/js/dialog','underscore', 'base/js/namespace'], function($, dialog, _, IPython){
> > +    "use strict";
> > +    $('#notebook_about').click(
> > +        function(){
> > +            // use underscore template to auto html escape
> > +            var text = 'You are using IPython notebook.<br/><br/>';
> > +            text = text+'The version of the notebook server is ';
> > +            text = text+_.template('<b><%- version %></b>')({version:sys_info.ipython_version});
> > +            if(sys_info.commit_hash){
> > +                text = text+_.template('-<%- hash %>')({hash:sys_info.commit_hash})
> > +            }
> > +            text = text+_.template(' and is runnig on:<br/><pre>Python <%- pyver %></pre>')({pyver:sys_info.sys_version});
> > +            var kinfo = $('<div/>').attr('id','#about-kinfo').text('Waiting for kernel to be availlable...');
> available
> 
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