travis: Cython 0.22

Author: methane

.travis.yml

@@ -17,8 +17,8 @@ env:
 install:
     - pip install wheel tox
     - ls -la wheelhouse
-    - if [ ! -f wheelhouse/Cython-0.21.2-cp27-none-linux_x86_64.whl ] ; then pip wheel cython ; fi
-    - pip install wheelhouse/Cython-0.21.2-cp27-none-linux_x86_64.whl
+    - if [ ! -f wheelhouse/Cython-0.22-cp27-none-linux_x86_64.whl ] ; then pip wheel cython==0.22 ; fi
+    - pip install wheelhouse/Cython-0.22-cp27-none-linux_x86_64.whl
     - cython --cplus msgpack/_packer.pyx msgpack/_unpacker.pyx
 
 script: tox