Added generics to app

[itsjoeconway]

@rosshambrick @JesseBlack82 @anachlas

Made Application class generic. This means that instead of

var app = new Application();
app.pipelineType = Pipeline;

The following is now the appropriate way (once merged)

var app = new Application<Pipeline, Request>();

Where Pipeline is the app specific Pipeline, and Request is either REsourceRequest or possibly an app specific ResourceRequest. The purpose of providing ResourceRequest here is that you can now provide another class to provide options on the REsourceREquest. Right now, options are provided by adding key-value pairs to the context property of the ResourceRequest; e.g., the PostgresqlModelAdapter.

We should now be able to supply this as a property.

class WildfireRequest extends ResourceRequest {
   PostgresqlModelAdapter adapter;
}

var app = new Application<WildfirePipeline, WildfireRequest();

Then, in your pipeline, you can set these values a lot more intuitively:

Future willReceiveRequest(WildfireRequest req) {
   req.adapter = this.adapter;
}

Submitted as PR for review and to avoid conflicts on your current projects

[anachlas]

I think we should remove the context from the ResourceRequest entirely and just create a ResourceRequest subclass that contains the adapter, permissions, and auth server for Wildfire. I never liked the idea of passing around arbitrary objects in a dictionary.

[rosshambrick]

you should add the workspace.xml to the .gitignore

[itsjoeconway]

will do