Fix issue in JS support and for binary RawDataOutput. Add Content-Length and Content-Disposition (optional) to response header. Add support to JS ZOO-API for sending headers and handling multi-valued inputs.

git-svn-id: http://svn.zoo-project.org/svn/trunk@383 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3