Move to container based Travis

.travis.yml

@@ -1,4 +1,4 @@
-sudo: required
+sudo: false
 language: python
 dist: trusty
 python:
@@ -7,9 +7,9 @@ after_success:
   - codecov
 virtualenv:
   system_site_packages: true
-before_install:
-  - sudo apt-get install -qq python-configparser python-setuptools
-  - pip install codecov pytest-cov
+#before_install:
+#  - apt-get install -qq python-configparser python-setuptools
+#  - pip install codecov pytest-cov
 install:
   - pip install -r requirements.txt
   - pip install --editable .