Airbugserver. BugCall. Implement BugCallRequestProcessor and RequestContextBuilder

[sungchoi]

Express

• built in session system processes sessions first and sets them on the request

BugCallServer

• change up to accept registrants for preprocessing of a request and processing of a request

RequestContextBuilder -- Replace RequestContextFactory

• register for preprocessing with BugCallRequestProcessor
• register with express for processing of request after express's session system and AFTER userService
• when instantiating the RequestContext, should set the requestType and pass in the request
• should accept registrants to help build the context
• after building the requestContext, this should place it back on the request

RequestContext

• add requestType to constructor
• should also have the request itself (either IncomingRequest from bugcall or the express request)

SessionService

• register with RequestContextBuilder
  -- add session to the RequestContext

UserService

• register with express for request processing of request before RequestContextBuilder
• register with BugCallServer for preprocessing
• on both of the above, we want to make sure an anonymous user has been created for the user if no userid is present in the session
• register with RequestContextBuilder
  -- load the user and place it in the RequestContext

BurRouter

• register with BugCallServer for processing last and route the request