travis: test setup.py

Author: jaxxzer

.travis.yml

@@ -24,4 +24,5 @@ deploy:
     condition: $TRAVIS_TAG =~ v[0-9]+.[0-9]+.[0-9]+.* && $(if grep -q "${BASH_REMATCH:1}" "$TRAVIS_BUILD_DIR/setup.py"; then echo 0; fi)
 
 script:
+  - python setup.py install
   - ./doc/update-gh-pages.sh