JUNOS get_bgp_config() - ValueError: Can't convert with callable None (Fix #1753)

[jtishey]

Getting errors on BGP neighbors with a cluster IP seem to be causing an exception to be raised in helpers.convert()

Please see issue #1753 for more info.

[jtishey]

Tests were failing because adding a default data type for cluster was adding it as a key to the outgoing data, which isn't what we want. So I undid that and changed it to be ignored when the key/values are being standardized and added to the outgoing bgp_config dict.

[jtishey]

Ran into a similar issue with the multihop key on some groups. Still looking to see why and if there's a better way to account for these.

[jtishey]

I think skipping the bgp_config + convert should be ok since it should have a datatype for all of the fields it cares about. Let me know if that's not the case.