Updated README.md to reflect desired API.
set up build structure for c++ files.
compiling version of private hla scheme.
fixed a couple of bugs.  still not running.
private hla mostly running.  still working small bugs out.  not correct yet.
private hla is running
removed some debugging text.
changed name of private_hla to shacham_waters_private
clean directory structure.
working python extension.  many methods not implemented.
private hla scheme working with python extension
modified heartbeat.cxx interface to match python interface argument order.
modified test to match heartbeat argument order
updated license
added installation instructions
removed rapidjson requirement
added required header includes
fixed missing unix c++11 compiler flag
added compatibility for msvc
updated documentation for installation