travis: Restructure

.travis.yml

@@ -6,50 +6,79 @@ os: linux
 
 matrix:
   include:
+    ### Archlinux QtWebKit
     - env: DOCKER=archlinux
       services: docker
+
+    ### Archlinux QtWebEngine
     - env: DOCKER=archlinux-webengine QUTE_BDD_WEBENGINE=true
       services: docker
-    - env: TESTENV=py36-pyqt571
+
+    ### PyQt 5.7.1 (Python 3.5)
     - python: 3.5
       env: TESTENV=py35-pyqt571
+    ### PyQt 5.7.1
+    - env: TESTENV=py36-pyqt571
+
+    ### PyQt 5.9
     - env: TESTENV=py36-pyqt59
+
+    ### PyQt 5.10
     - env: TESTENV=py36-pyqt510
       addons:
         apt:
           packages:
           - xfonts-base
+
+    ### PyQt 5.11 (with coverage)
     - env: TESTENV=py36-pyqt511-cov
+    ### PyQt 5.11 (Python 3.7)
     - python: 3.7
       env: TESTENV=py37-pyqt511
+
+    ### PyQt 5.12
     - env: TESTENV=py36-pyqt512
+
+    ### macOS sierra
     - os: osx
       env: TESTENV=py37 OSX=sierra
       osx_image: xcode9.2
       language: generic
+    ### macOS yosemite
     # https://github.com/qutebrowser/qutebrowser/issues/2013
     # - os: osx
     #   env: TESTENV=py35 OSX=yosemite
     #   osx_image: xcode6.4
+
+    ### pylint/flake8/mypy
     - env: TESTENV=pylint
     - env: TESTENV=flake8
     - env: TESTENV=mypy
+
+    ### docs
     - env: TESTENV=docs
       addons:
          apt:
            packages:
            - asciidoc
+
+    ### vulture/misc/pyroma/check-manifest
     - env: TESTENV=vulture
     - env: TESTENV=misc
     - env: TESTENV=pyroma
     - env: TESTENV=check-manifest
+
+    ### eslint
     - env: TESTENV=eslint
       language: node_js
       python: null
       node_js: "lts/*"
+
+    ### shellcheck
     - language: generic
       env: TESTENV=shellcheck
       services: docker
+
   fast_finish: true
   allow_failures:
     - env: DOCKER=archlinux-webengine QUTE_BDD_WEBENGINE=true