spray/spray — pull request #457 by jrudolph (2013-08-23 12:12:40+00:00)
Title: = can: fix PipelineLimiter which only worked for chunked requests, fix #414

Some things to keep in mind:
* It may take quite a while until Tcp.SuspendReading gets to the networking part. In
this time quite a bit of data may already be in queues to be processed.
* PipelineLimiting doesn't work at all with fast-path because all the request processing is done instantly,
i.e. during the `eventPL` call in handleEvent the complete request is handled and already sent
out so that the openRequests counter is never increased.

Facing those problems it may make sense to add a flag to disable pipelining per default with the result that the RequestParser would abort a connection when it receives another request while a previous one isn't finished.