Bump Py3 CI tests to Py 3.5

.gitlab-ci.yml

@@ -22,15 +22,15 @@ Python 2.7 POCL:
   - pocl
   except:
   - tags
-Python 3.4 POCL:
+Python 3.5 POCL:
   script:
-  - export PY_EXE=python3.4
+  - export PY_EXE=python3.5
   - export PYOPENCL_TEST=portable
   - export EXTRA_INSTALL="numpy mako"
   - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/build-and-test-py-project.sh
   - ". ./build-and-test-py-project.sh"
   tags:
-  - python3.4
+  - python3.5
   - pocl
   except:
   - tags