adding new utils.cmake (linux compatibility)
adding boost asio example, adding boost lections prototype
adding example for boost asio
adding letion prototype (all theoretical basis for networking:
adding example for boost asio sync_tcp client/server
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013 into lections
adding last pre changes to 6 lection presentation
added boost/array.hpp header to fix complilation error
added async_tcp client and tests
added source for async_tcp tests
fixed tcp_client_manager buffer memory management
Merge branch 'lections' of https://github.com/sidorovis/cpp_craft_1013