deferreds

[slawrence]

A suggestion for circuits-js:

Instead of in all cases defining an object with 'onLoad' and 'onError' properties to handle callbacks, could we modify circuits to return a promise so we can utilize some of dojo's nifty promise apis?

For example:

var deferred = this.idsService.queryIDSList({
       caseNumber: caseObj.caseNumber,
       count: 500,
      fields: "caseFillingDate,date,documents,idsId,signedDate,sourceAbbreviation,sourceTitle"
 });

deferred.then(function (res) {
...
}, function (error) {
...
});

It'd be really nice to use 'dojo/promise/all' and 'dojo/when' in a lot of cases.

all([metadataReq, docInfoReq, graphReq]).then(function(results){
    //start rendering - results will contain each result
  });

Finally, we could mix and match circuits stuff with regular dojo/requests calls (since they return deferreds). http://dojotoolkit.org/documentation/tutorials/1.8/deferreds/