some fixes, check README

some fixes, check README

	modified:   README
	modified:   action.cpp
	modified:   action_vbox.cpp
	modified:   admin_client.c
	modified:   admin_server.c
	modified:   apppbx.cpp
	modified:   apppbx.h
	modified:   dss1.cpp
	modified:   endpointapp.cpp
	modified:   endpointapp.h
	modified:   interface.c
	modified:   joinpbx.cpp
	modified:   joinremote.cpp
	modified:   mISDN.cpp
	modified:   main.h
	modified:   message.h
	modified:   port.cpp
	modified:   port.h
	modified:   todo.txt
	modified:   tones.c