Fixes to TTN_ORG support
Fixes to TTN_ORG support

Use $(TTN_ORG)/hosts as the INVENTORY if it exists.

Change Can't to Unable.  The quote screws up emacs formatting

Disable the sanity check for INVENTORY being a directory, it needs to
allow for it being a file.

IthacaThings/ttn-multitech-cm,IthacaThings/ttn-multitech-cm