v0.5.1

LibSerialPort v0.5.1

Diff since v0.5.0

minor documentation fix

Closed issues:

• "Inappropriate ioctl for device" when opening Port (#84)
• Please enable CI build of documentation (#86)
• Stable docs link broken in readme (#89)

Merged pull requests:

• fix unescaped '\n' backslashes in docstring (#82) (@mgkuhn)
• fix name=>portname (#85) (@ederag)