Updated setup.py

Relaxed matplotlib requirement

setup.py

@@ -35,7 +35,7 @@ setup(
 
     # I don't remember how to do this correctly!!!. NL
     install_requires=['numpy_groupies','pyqtgraph','numpy>=1.11.0',
-                      'h5py>=2.6.0','scipy>=0.17.1','matplotlib>=1.5.1',
+                      'h5py>=2.6.0','scipy>=0.17.1','matplotlib',
                       'scikit-learn>=0.17.1','xlrd>=1.0.0','freetype-py'],#'multiprocess'],
     #package_data={'sample':['dataset_1.dat']}
     test_suite='nose.collector',