* Exporting Ipmi.Path to be set by config.
Currently "path" is not exported, giving this error when users try to
override the variable via telegraf.conf as per the sample config:
`field corresponding to `path' is not defined in `*ipmi_sensor.Ipmi'`
Exporting the variable solves the problem.
* Updating changelog.
Daniel Nelson
Maximilien Richer
Matteo Cerutti
Patrick Hemmer
Daniel Nelson
Robpol86
Matteo Cerutti
Cameron Sparr