reconnect to server at every update

fix
changes
Merge branch 'master' into em

Conflicts:
	main.rb
remove require call to websocket-ruby gem
remove server code from main.rb

extract websocket code to server_socket.rb

remove server.rb
spec file rename
fix & refactoring in server_socket
fix
refactoring
fix in main.rb
small changes
add ServerSocket::Message class
fix
try to reconnect
fix
fix
fix
reopen closed connections