Merge pull request #251 from wajam/fx-fix-respond

Fix respond
Added streaming support and refactored previous chunked encoding support
use typeclass for message parameter extraction
renamed method to get optional parameters
Merge pull request #254 from wajam/fx-request

[NRV] Use typeclass for message parameter extraction.
Added HybridCodec to support streams with NRV protocol
Removed useless constants in HttpChunkedResponse
Enforced streaming tests with full content + size checks
Merge pull request #252 from wajam/clement-nrv-streaming

Added streaming support and refactored previous chunked encoding support
merge with Clement changes
fix test broken by  merge