Always build wheels and archive them as artifacts

appveyor.yml

 environment:
-  password:
+  global:
+    TWINE_USERNAME: zope.wheelbuilder
+    TWINE_PASSWORD:
       secure: UcdTh6W78cRLVGfKRFoa5A==
 
   matrix:
-    - python : 27
-    - python : 27-x64
-    - python : 33
-    - python : 33-x64
-    - python : 34
-    - python : 34-x64
-    - python : 35
-    - python : 35-x64
+    - python: 27
+    - python: 27-x64
+    - python: 33
+    - python: 33-x64
+    - python: 34
+    - python: 34-x64
+    - python: 35
+    - python: 35-x64
 
 install:
   - "SET PATH=C:\\Python%PYTHON%;c:\\Python%PYTHON%\\scripts;%PATH%"
   - echo "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x64 > "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\vcvars64.bat"
   - pip install -e .
 
-build: false
+build_script:
+  - pip install wheel
+  - python -W ignore setup.py -q bdist_wheel
 
 test_script:
   - python setup.py -q test -q
 
-on_success:
-  - echo Build succesful!
+artifacts:
+  - path: 'dist\*.whl'
+    name: wheel
 
 deploy_script:
-  - echo [distutils]                                  > %USERPROFILE%\\.pypirc
-  - echo index-servers =                             >> %USERPROFILE%\\.pypirc
-  - echo     pypi                                    >> %USERPROFILE%\\.pypirc
-  - echo [pypi]                                      >> %USERPROFILE%\\.pypirc
-  - echo repository=https://pypi.python.org/pypi     >> %USERPROFILE%\\.pypirc
-  - echo username=zope.wheelbuilder                  >> %USERPROFILE%\\.pypirc
-  - echo password=%password%                         >> %USERPROFILE%\\.pypirc
-  - set HOME=%USERPROFILE%
-  - pip install wheel twine
-  - ps: if($env:APPVEYOR_REPO_TAG -eq $TRUE) { python -W ignore setup.py bdist_wheel; twine upload dist/* }
+  - ps: if ($env:APPVEYOR_REPO_TAG -eq $TRUE) { pip install twine; twine upload dist/* }
 
-deploy : on
+deploy: on