Modify Travis CI to include minimum and most recent versions of depen…

…dencies

.travis.yml

@@ -1,17 +1,21 @@
 language: python
-python:
-  - "3.2"
-  - "3.3"
-env:
-  - NUMPYSPEC=
-  - NUMPYSPEC===1.8.0
+matrix:
+  include:
+    - python: 3.2
+      env:
+        - NUMPYSPEC===1.8.0
+        - SCIPYSPEC=
+    - python: 3.3
+      env:
+        - NUMPYSPEC=
+        - SCIPYSPEC=
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
 install:
   - sudo apt-get update -qq
   - sudo apt-get install -qq libatlas-dev libatlas-base-dev liblapack-dev gfortran hdf5-tools libhdf5-serial-dev
   - pip install cython
   - pip install numpy$NUMPYSPEC
-  - pip install scipy
+  - pip install scipy$SCIPYSPEC
   - pip install matplotlib
   - pip install h5py
   - pip install coverage coveralls

README.rst

@@ -5,7 +5,7 @@ BayesPy - Bayesian Python
    :target: https://travis-ci.org/bayespy/bayespy/
 
 .. image:: https://coveralls.io/repos/bayespy/bayespy/badge.png?branch=master
-   :target: https://coveralls.io/r/bayespy/bayespy?branch=master 
+   :target: https://coveralls.io/r/bayespy/bayespy?branch=master
 
 BayesPy provides tools for Bayesian inference with Python.  The user
 constructs a model as a Bayesian network, observes data and runs