Merge branch 'cherry-pick-f0d33bc3' into 'releases/2.6'

Merge branch 'patch-1' into 'master'

See merge request !428

CHANGELOG.md

 # Release 2.6
 
+**This release is dedicated to Elias Pipping (1986-2017).**
+
 - New class `IntegralRange<integral_type>` and free standing function
   `range` added, providing a feature similar to Python's `range` function:
   ```