Update psrp client nuget for linux/mac

Adds ntml over spnego for authentication between windows and centos7.3
and ubuntu 16.04.
Fixes a number of problems that stopped connection to
exchange/office365.

src/powershell-unix/project.json

@@ -79,7 +79,7 @@
     "dependencies": {
         "Microsoft.PowerShell.SDK": "6.0.0-*",
         "Microsoft.PowerShell.PSReadLine": "6.0.0-*",
-        "libpsrpclient": "1.0.0-*",
+        "psrp": "1.1.0-*",
         "PSDesiredStateConfiguration": "1.0.0-alpha01",
         "PowerShellHelpFiles": "1.0.0-alpha01"
     },