[Travis] Switch to container build, latest browser

.travis.yml

@@ -1,6 +1,8 @@
 notifications:
   email: false
 
+sudo: false
+
 language: python
 
 services:
@@ -18,9 +20,21 @@ env:
     - TOXENV=py34-1.10
     - TOXENV=py34-1.11
 
+addons:
+  firefox: latest
+  apt:
+    packages:
+      - ffmpeg
+      - libavcodec-extra-53
+      - xvfb
+
+before_install:
+  - wget https://github.com/mozilla/geckodriver/releases/download/v0.17.0/geckodriver-v0.17.0-linux64.tar.gz
+  - mkdir geckodriver
+  - tar -xzf geckodriver-v0.17.0-linux64.tar.gz -C geckodriver
+  - export PATH=$PATH:$PWD/geckodriver
+
 install:
-  - 'if [ $TOXENV != "flake8" ]; then sudo apt-get update -qq; fi'
-  - 'if [ $TOXENV != "flake8" ]; then sudo apt-get install -qq ffmpeg libavcodec-extra-53 iceweasel xvfb; fi'
   - pip install tox
 
 before_script:

setup.py

@@ -56,7 +56,7 @@ def read_file(filename):
     ] + ssl,
     extras_require={
         'test': [
-            'selenium < 3',
+            'selenium >= 3',
             'mock',
             'django-nose == 1.4.4',
             'Mutagen',