Cannot Discover assets for import in mdw-hub from repo on 143 server

[jbrojdeCTL]

When trying to import assets via mdw-hub, if you enter the 143 discovery URL (http://lxdenvmtc143.dev.qintra.com:7021/Discovery/assets), it returns error message:

Discovery failed: Invalid response from: http://lxdenvmtc143.dev.qintra.com:7021/Discovery/assets

HTTP response from server was:
{"status": {
"code": 500,
"message": "Invalid response from: http://lxdenvmtc143.dev.qintra.com:7021/Discovery/assets"
}}

[donaldoakes]

Superseded by #215.