Version typo fixed

diff --cc CHANGELOG.txt
index 0be844b6e85124767dd97df344c78457c24ed798,0be844b6e85124767dd97df344c78457c24ed798..8364b3677a2060e87f1bccad31d28890955e5282
--- 1/CHANGELOG.txt
--- 2/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@@ -19,7 -19,7 +19,7 @@@ Legend
  ! -> Note
  $ -> Affected files
  
--------------------------------- Release 2.1.5 ----------------------------------
++------------------------------- Release 2.1.6 ----------------------------------
  ! Final Final release of the 2.1. series.
  $ config.php