[12422] Add helper script to easily create a topic branch
[12423] Add a helper script to easily merge topic branches and pull-requests
[12424] Add Contributing Guidelines

[ci skip]
rewrite network stack using Boost::Asio library.

You need Boost 1.5.3 in order to compile new sources.
Add boost to VS project includes
Add linking support boost libs
Some easy switches to boost way
Add boost::extension library in deps

It's planeed use for portable access to shared libraries
In fact only single low-level file used from it expected:
dep/include/boost-extension/boost/extension/impl/linked_library.hpp
Add dep/includes to framework.vcxproj

For lookup boost-extension
Use boost::extension library for shared libs access
update VC2009 solution files to reflect recent structure of the <shared> project
Fixed warnings in boost-extension.