Fix warnings and errors on VisualStudio 2013

Interestingly, VS2013 with Boost 1.55 exhibited the issues complained
about in issue #92, so I was able to provide an appropriate fix. It would
appear to be bugs in both compilers, which seems very odd.
Merge branch 'master' into ChaiScript_5_0_CPP_11

Conflicts:
	include/chaiscript/dispatchkit/bootstrap.hpp
	include/chaiscript/dispatchkit/proxy_functions_detail.hpp
	src/reflection.cpp
Update version to 4.3.0
Update to version 5.3.0

Merge branch 'master' into ChaiScript_5_0_CPP_11

Conflicts:
	CMakeLists.txt
	releasenotes.txt