Build: do not run tests on appveyor, instead try to build for all platforms

.travis.yml

@@ -9,4 +9,4 @@ install:
   - sudo installer -pkg "MonoFramework-MDK-${MONO_VERSION}.macos10.xamarin.x86.pkg" -target /
 
 script: 
-  - ./build.sh Test quick
+  - ./build.sh Build all

appveyor.yml

@@ -1,6 +1,3 @@
 build_script:
-  - ps: .\build.cmd Test quick
+  - ps: .\build.cmd Build all
 test: off
-artifacts:
-  - path: out\packages\NuGet\*.nupkg
-  - path: out\packages\Zip\*.zip