Hardcode ChromeDriver version untill bug with Selenium ActionChains has been fixed (#1394)

Author: aaltat

.travis.yml

@@ -12,7 +12,8 @@ addons:
       - google-chrome-stable
 before_install:
   - CDVERSION=`curl http://chromedriver.storage.googleapis.com/LATEST_RELEASE`
-  - wget --no-verbose http://chromedriver.storage.googleapis.com/$CDVERSION/chromedriver_linux64.zip
+  - echo $CDVERSION
+  - wget --no-verbose http://chromedriver.storage.googleapis.com/74.0.3729.6/chromedriver_linux64.zip
   - unzip chromedriver_linux64.zip
   - sudo chmod u+x chromedriver
   - sudo mv chromedriver /usr/bin/