Fix D47data.compute_r() and bump version

Author: mdaeron

D47crunch/__init__.py

@@ -13,8 +13,8 @@
 __contact__   = '[email protected]'
 __copyright__ = 'Copyright (c) 2020 Mathieu Daëron'
 __license__   = 'Modified BSD License - https://opensource.org/licenses/BSD-3-Clause'
-__date__      = '2021-03-15'
-__version__   = '1.1.1'
+__date__      = '2021-06-30'
+__version__   = '1.2.0'
 
 import os
 import numpy as np