Merge pull request #356 from bfredl/py3.7

add python3.7 to travis

Author: bfredl

.scrutinizer.yml

@@ -131,4 +131,4 @@ filter:
 tools:
   external_code_coverage:
     timeout: 1200
-    runs: 5
+    runs: 6

.travis.yml

@@ -1,4 +1,4 @@
-sudo: false
+dist: xenial
 language: python
 env:
   global:
@@ -7,6 +7,9 @@ env:
     - CI_TARGET=tests
 matrix:
   include:
+    - python: pypy
+      dist: trusty
+      sudo: false
     - python: 3.6
       env: CI_TARGET=checkqa TOXENV=checkqa
 python:
@@ -16,7 +19,7 @@ python:
   - 3.4
   - 3.5
   - 3.6
-  - pypy
+  - 3.7
 before_install:
   - if [ $CI_TARGET = tests ]; then
       eval "$(curl -Ss https://raw.githubusercontent.com/neovim/bot-ci/master/scripts/travis-setup.sh) nightly-x64";