Attempt at running on travis-ci.

- Installs our apt-repo to worker.
- Installs all mopidy deps listed in apt.
- Runs our tests with site-packages, thus we can only test the main python
  verision travis uses.

.travis.yml

@@ -0,0 +1,12 @@
+language: python
+
+install:
+  - "wget -q -O - http://apt.mopidy.com/mopidy.gpg | sudo apt-key add -"
+  - "sudo wget -q -O /etc/apt/sources.list.d/mopidy.list http://apt.mopidy.com/mopidy.list"
+  - "sudo apt-get update"
+  - "sudo apt-get install $(apt-cache depends mopidy | awk '$2 !~ /mopidy/ {print $2}')"
+
+before_script:
+  - "rm $VIRTUAL_ENV/lib/python$TRAVIS_PYTHON_VERSION/no-global-site-packages.txt"
+
+script: nosetests