Small Updates

Change log v.1.7.3.2

• Fix output for network plugin to unsigned long int to avoid overflow
• Fix invalid version number in 'fetch version'
• Change category of HDD temp to 'disk'

2020-02-18 Version: 1.7.3.1

This is the release after working through most of the outstanding pull requests.

2020 Release

Major updates to fix broken plugins and add new SMART plugins.