creating a SprayRoutingServer
splitting out RequestRunner from SprayRoutingClient so that we can override the main spray actor for testing purposes
fixing ResourceService and specs to use a unique (mock) spray actor on each test
fixing docs on SprayRoutingServer
using orThrow
Merge pull request #42 from paypal/feature/fix-resource-service-specs

fixing intermittent test failures on ResourceServiceSpecs
Merge branch 'develop' into feature/naming-change-for-config

Conflicts:
	http/src/test/scala/com/paypal/cascade/http/tests/api/SprayRoutingClient.scala