* Include EdgeSwitch and update subs to support more UBNT devices
* Adjust EdgeRouter model logic to use only standard OIDs
* Comments and code cleanup
* cleanup
* Include ER Infinity
Serial numbers weren't reported for stackable Layer3::H3C devices, even
when not actually stacked. Report serial number not only if the entity
has no parent, but also if it has a parent but is of type "chassis".
This fixes#232.
Data rates up to MCS 15 (two spatial streams) at 20 MHz and 40 MHz were
defined; added MCS 16 through 23.
Decoding MCS rates at SS1 and SS2 not implemented yet.
