Correctly close connection and trigger exception on malformed HTTP request
Merge pull request #854 from eclipse/malformed_http_request

Correctly close connection and trigger exception on malformed HTTP reque...
https://github.com/eclipse/vert.x/pull/833
applied https://github.com/eclipse/vert.x/pull/844 manually
Applied https://github.com/eclipse/vert.x/pull/857 manually
Correctly calculate the size of FileUploads. See BZ-418985
Remove debugging cruft