Bump version number

Author: edeno

setup.py

@@ -8,7 +8,7 @@
 
 setup(
     name='spectral_connectivity',
-    version='0.2.2.dev0',
+    version='0.2.3.dev0',
     license='GPL-3.0',
     description=('Frequency domain functional and directed'
                  'connectivity analysis tools for electrophysiological'