Add occupant names to tooltip

Tooltips are back!

Nicely styled tooltips show the contents of the occupantNames field (which due to limitations with Google Apps accounts shows the email address of the people in the room)
I'll try that and see how it goes 



—
Reginald Pierce 
pierce.reginald@gmail.com

On Mon, Nov 17, 2014 at 9:27 AM, Greg Daneault <notifications@github.com>
wrote:

>> @@ -468,7 +468,11 @@ housing.style = {
>>      r: function(d){ return 4*Math.sqrt(Math.abs(10.5*d.capacity - 1)); },
>>      endAngle: function(d){ return 6.28319 * d.occupants / d.capacity; },
>>      tooltip: function(d) {
>> -        return "<strong>"+d.number+"</strong>";
>> +        if(d && d.occupantNames){
>> +            return d.occupantNames.join("<br>");
> Might be better to return this as a list (and suppress bullets if necessary)
> ---
> Reply to this email directly or view it on GitHub:
> https://github.com/RITHonorsTechCommittee/honors-d3-housing/pull/40/files#r20437576