Pyserssh

PyserSSH15.py is V1.5 from [Gist](https://gist.github.com/damp11113/610c516f7236752366d320b78b2ec618)
PyserSSH12.py is V1.2 from ...
PyserSSH12.py is V1.0 from ... (First version)

fix "can't disconnection"

**Full Changelog**: https://github.com/DPSoftware-Foundation/PyserSSH/compare/5.1.3...5.1.4

fix loop disconnect

**Full Changelog**: https://github.com/DPSoftware-Foundation/PyserSSH/compare/5.1.2...5.1.3

fix setup.py not found utils folder

**Full Changelog**: https://github.com/DPSoftware-Foundation/PyserSSH/compare/5.1.1...5.1.2

This update fix ctypes is not defined in linux

**Full Changelog**: https://github.com/DPSoftware-Foundation/PyserSSH/compare/5.1...5.1.1