update the message to change the Signal to pyqtSignal
add bsdsocket.py module_completion.py in SMlib/utils package
Revert "add bsdsocket.py module_completion.py in SMlib/utils package"

This reverts commit 8fc791c4bff6a1840a8b514886f8192959e2743e.
amend
add the bsdsocket.py in SMlib/utils package