adding finagle-http
prototyping FinagleHttpClient
attempting to build promises from futures more efficiently
Merge branch 'master' into finagle-client

Conflicts:
	build.sbt
adding TwitterFutureWSpecs=
implementing the rest of FinagleHttpClient
beginning FinagleHttpClientSpecs
splitting common client tests out into a generic container
also finishing FinagleHttpClientSpecs
including more license headers
adding the remaining license headers
increasing timeout value for tests
Merge pull request #28 from stackmob/finagle-client

Prototyping FinagleHttpClient