increase the version in setup.py to 1.2.2

Author: Ilya Razenshteyn

src/python/package/setup.py

@@ -26,7 +26,7 @@
                                  np.get_include()])
 
 setup(name='FALCONN',
-      version='1.2.1',
+      version='1.2.2',
       author='Ilya Razenshteyn, Ludwig Schmidt',
       author_email='falconn.lib@gmail.com',
       url='http://falconn-lib.org/',