#389: fix typo
Add SSL support

Add basic SSL support to async_server. Use stream_handler class to make
sure we don't copy code.
Add copyright
Add documentation for SSL support
Closes #399: Fix compiler error on VS2010.
Update to documentation/add example

Created a simple example
Uptate to the documentation based on created simple ssl server
Small bugfix to allow clean shutdown of server without warnings when
using basic ssl (no client authentication)
close const string fix
Avoid self join
rollback for pull reguest
Added client timeout option
Added CMake options to disable building tests and examples
Async thr wait in basic_client_facade dtor
Update facade.hpp
Fix order of members
Fix dependencies for openssl.
Reorder fields to fix warnings.