[TASK][DOC] (CHANGELOG): make Seitosh less system specific

CHANGELOG

@@ -3,6 +3,11 @@ this is <CHANGELOG>
 Recent development in Seitosh (bug fixes, new features, etc)
 ------------------------------------------------------------
 
+27.10.2015 (b95726e01): Make Seitosh less system specific
+
+  Explicitely use /bin/bash and make use of printf (instead of echo command
+  with non-standard options).
+
 26.10.2015 (e1816be7d): Add step-by-step example for lisousi
 
 19.10.2015 (bfef3205e): Revision of end-user documentation of libstfinv