Drop Python 3.4 from the tests

Author: auscompgeek

.travis.yml

@@ -3,7 +3,6 @@ sudo: false
 env:
   - RUNCOVERAGE=1 ROBOTPY_NO_DEPS=1
 python:
-  - "3.4"
   - "3.5"
   - "3.6"
 # command to install dependencies
@@ -27,4 +26,4 @@ notifications:
       - https://webhooks.gitter.im/e/2fb1c026e64fdd70d27b
     on_success: change
     on_failure: always
-    on_start: never
+    on_start: never