Make deployer handle App Builder apps easily

[dmcassel]

Right now to use the deployer for an App Builder app, I have to do the following:

• Set the url-rewriter to /MarkLogic/rest-api/rewriter.xqy (build.properties)
• Set the error-handler to /MarkLogic/rest-api/error-handler.xqy (build.properties)
• Set rewrite-resolves-globally to true (ml-config.xml)
• Add a deployment step to put /marklogic.rest* of the modules database in the http://marklogic.com/extension/plugin collection (app_specific.rb)

Ideally, I could specify as an argument to "ml new" that I'm working with an App Builder/REST API app and it would set these things up for me, including handling the modules collection as part of deploy modules. If that argument is specified, it could also skip creating the default MVC code.

[dmcassel]

I checked in changes to the dev branch such that deploy modules adds marklogic.rest* stuff to the needed collection if you have a property "app-type=rest".