add travis-ci file

Author: fabianp

.travis.yml

@@ -0,0 +1,27 @@
+language: python
+python:
+  - "2.7"
+  - "3.3"
+install:
+  - sudo apt-get update
+  # We do this conditionally because it saves us some downloading if the
+  # version is the same.
+  - if [[ "$TRAVIS_PYTHON_VERSION" == "2.7" ]]; then
+      wget https://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh;
+    else
+      wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;
+    fi
+  - bash miniconda.sh -b -p $HOME/miniconda
+  - export PATH="$HOME/miniconda/bin:$PATH"
+  - hash -r
+  - conda config --set always_yes yes --set changeps1 no
+  - conda update -q conda
+  # Useful for debugging any issues with conda
+  - conda info -a
+
+  # Replace dep1 dep2 ... with your dependencies
+  - conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION numpy nose
+  - source activate test-environment
+  - make test
+script:
+- nosetests -v