Removed noexit on build script

Author: TwoTenPvP

appveyor.yml

@@ -8,7 +8,7 @@ build:
   verbosity: minimal
 
 before_package:
-  - powershell -noexit "& ""C:\projects\mlapi\BuildUnityPackages.ps1"""
+  - powershell "& ""C:\projects\mlapi\BuildUnityPackages.ps1"""
 
 artifacts:
   - path: 'MLAPI\bin\Debug\MLAPI*'