DOC: initiated changelog (but not juice left to actually fill it up ;-))

ChangeLog

@@ -7,6 +7,19 @@
 Fail2Ban (version 0.8.8)                                              2012/12/06
 ================================================================================
 
+ver. 0.8.9 (2013/04/XXX) - wanna-be-stable
+----------
+
+This release incorporates 144 (XXX) non-merge commits from 14
+contributors (sorted by number of commits): Yaroslav Halchenko, Daniel
+Black, Steven Hiscocks, ArndRa, hamilton5, pigsyn, Erwan Ben Souiden,
+Michael Gebetsroither, Orion Poplawski, Artur Penttinen, sebres,
+Nicolas Collignon, Pascal Borreli, blotus:
+
+- Fixes:
+- New features:
+- Enhancements:
+
 ver. 0.8.8 (2012/12/06) - stable
 ----------
 - Fixes:

DEVELOP

@@ -253,6 +253,10 @@ Releasing
 
 # Add/finalize the corresponding entry in the ChangeLog
 
+  To generate a list of committers use e.g.
+
+  git shortlog -sn 0.8.8.. | sed -e 's,^[ 0-9\t]*,,g' | tr '\n' '\|' | sed -e 's:|:, :g'
+
 # Update man pages
 
   (cd man ; ./generate-man )