Updated version number for release (1.5)

Updated version number for release (1.4)

Updated version number for release (1.3.1).

Updated version number for release (1.3).

Updated version for point release (1.2.1).

Updated version number for release (sparkplug-1.2).

Updated version number for release (1.1).

Updated version number for release (1.0.6).

Updated version number (1.0.5)

Updated version for release (1.0.4)