Travis: Add python3 setuptools to install

Author: JelteF

.travis.yml

@@ -10,7 +10,7 @@ install:
     - wget https://launchpad.net/awkwardduet/1.1/1.1a4/+download/awkwardduet-1.1a4.tar.gz
     - tar -xzvf awkwardduet-1.1a4.tar.gz
     - cd awkwardduet-1.1a4
-    - sudo apt-get install python3
+    - sudo apt-get install python3 python3-setuptools
     - sudo python3 setup.py install
     - cd ..
     - ./convert_to_py2.sh