added the JSON-Java library
Minor improvements to handler interface

The abstract class SWSSHandler now implements the sendResponse method
which subclasses may utilise. It takes a WSRequest (to which the
response is sent) and a WSResponse which provides the data.
Small improvements

primarily provided synchronization on sendResponse as there could be a
case when a request is being forwarded to this WSRequest as well as it
responding to an echo where it was the originator.
Fixed major encoding issue

The response serialisation was incorrectly masking the lower 8 bits of
an extended payload size value (bytes 3,4) using a bitwise OR rather
than AND. This was causing incorrect payload size data.
fixed a threading issue

The thread was being started incorrectly, causing it to not allow for
multiple connections.
getting RTC working

working on the JavaScript and html interface. Still having issues with
the async nature of JSEP but getting closer.
implementing WebRTCHandler in server