Q:

NVD3.js: Where is the documentation?  Need help to configure some functionalities

I'm starting to work with NVD3.js and I'm a little lost about the configurations possible with this tool. 
I want to configure many items like:

Display x axis label for every bar, currently I have only the even ones displaying:

I want to configure a click function on the bars, which will redirect to a page passing the x axis as parameter, this link can be displayed on the label, but in this case I need to change it, to be able to click on it. 

These are my doubts, can someone help me with the documentation link or with the answer to my questions? 
-- EDIT --
Found how to display the label for every bar on x axis: 
In the nv.d3.js edit the function nv.models.multiBarChart.  In this line: reduceXTicks = true, set the value to false. 
or
Just add this line to your  nv.addGraph function:
chart.reduceXTicks('false');

A:

Development of NVD3 appears to have moved to the nvd3-community fork which has documentation available. 

A:

Agreed with shabeer90.  There is no documentation for NVD3 (wish there was). 
D3.js documentation is of course largely in play...

A:

Thanks for all replies, but I've done it by myself:
For displaying x axis label for every bar: 
Add chart.reduceXTicks('false'); to your nv.addGraph() function, like this:
nv.addGraph(function () {
    var chart = nv.models.multiBarChart();

    chart.reduceXTicks(false);

    return chart;
});

For adding an event to click on the bars, use this on your chart function:
d3.selectAll("rect.nv-bar").on("click", function (d) { // You can pass d to function to recover x ou y value of the bar
  // Whatever you want to do on click
});

If someone has a better solution, please comment here.