travis integration for tests

.gitignore

@@ -1,2 +1,3 @@
 *.py[co]
 *.sw[po]
+.cache/

.travis.yml

@@ -0,0 +1,9 @@
+language: python
+python:
+  - "3.2"
+  - "3.3"
+  - "3.4"
+  - "3.5"
+install: "pip install -r requirements.txt"
+script: 
+  - ./tests/run_tests.py

tests/run_tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+tests_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $tests_dir
+python -m pytest test_*.py