enable linux builds

appveyor.yml

@@ -1,6 +1,6 @@
 image:
 - Visual Studio 2017
-#- Ubuntu1804
+- Ubuntu1804
 
 branches:
   except:
@@ -25,7 +25,6 @@ init:
       Install-Product node 10
       $env:PATH = "C:\Program Files (x86)\Resource Hacker;${env:PATH}"
       if(Test-Path -Path $env:WIN_PKG) {
-        echo "THERE IS A WIN_PKG"
         $env:VER_INFO = "true"
       }
     }