fix travis RID detection in KoreBuild

build/_k-standard-goals.shade

@@ -38,6 +38,22 @@ default NUGET_FEED = 'https://api.nuget.org/v3/index.json'
   }
 
   Log.Info("Build v2: " + IsBuildV2);
+
+  // Temporary until KoreBuild is updated
+  // It looks like it isn't possible to do this in .travis.yml because we only want
+  // to do it on Linux and I couldn't find an easy way to do that kind of selective
+  // environment variable set.
+  if(E('TRAVIS') == "true")
+  {
+    if(CanBuildForLinux) 
+    {
+      E('DNX_RUNTIME_ID', 'ubuntu.14.04-x64');
+    }
+    else
+    {
+      E('DNX_RUNTIME_ID', 'osx.10.10-x64');
+    }
+  }
 }
 
 #restore-npm-modules