Update setup.py

Author: sinanozaydin

setup.py

@@ -5,7 +5,7 @@
 
 setup(
     name='pide',
-    version='0.3.0',
+    version='0.3.1',
     description='A library for petrophysical interpretations of geophysical models.',
     author='Sinan Ozaydin, Lu Li, Utpal Singh, Patrice F. Rey, Maria Constanza Manassero',
     author_email='[email protected]',