Swap lint/requirements validation between Python versions

.travis.yml

@@ -8,8 +8,8 @@ python:
   - 3.4
   - 3.5
 install:
-  # Validate requirements_all.txt on Python 3.5
-  - if [[ $TRAVIS_PYTHON_VERSION == '3.5' ]]; then python3 setup.py -q develop 2>/dev/null; tput setaf 1; script/gen_requirements_all.py validate; fi
+  # Validate requirements_all.txt on Python 3.4
+  - if [[ $TRAVIS_PYTHON_VERSION == '3.4' ]]; then python3 setup.py -q develop 2>/dev/null; tput setaf 1; script/gen_requirements_all.py validate; fi
   - script/bootstrap_server
 script:
   - script/cibuild

script/cibuild

@@ -5,7 +5,7 @@
 
 cd "$(dirname "$0")/.."
 
-if [ "$TRAVIS_PYTHON_VERSION" != "3.4" ]; then
+if [ "$TRAVIS_PYTHON_VERSION" != "3.5" ]; then
   NO_LINT=1
 fi