Fix installation docs for correct python version

Fix installation documentation (section Prerequisites) to require at
least python 2.5, thanks to John P. Rouillard for discovering this.

Author: schlatterbeck

CHANGES.txt

@@ -44,9 +44,13 @@ Fixed:
   thanks W. Trevor King (John Kristensen)
 - Fix basic authentication: instatiating the login action would fail if
   the user is not set. We now first set the user to anonymous and then
-  try basic authentication if enabled.
+  try basic authentication if enabled. (Ralf Schlatterbeck)
 - Fix xmlrpc permissions for lookup method: Allow if the key attribute
-  is either searchable or viewable, don't check id attribute
+  is either searchable or viewable, don't check id attribute (Ralf
+  Schlatterbeck)
+- Fix installation documentation (section Prerequisites) to require at
+  least python 2.5, thanks to John P. Rouillard for discovering this.
+  (committed by Ralf Schlatterbeck)
 
 
 2012-05-15: 1.4.20

doc/installation.txt

@@ -30,7 +30,7 @@ Roundup scripts
 Prerequisites
 =============
 
-Roundup requires Python 2.3 or newer (but not Python 3) with a functioning
+Roundup requires Python 2.5 or newer (but not Python 3) with a functioning
 anydbm module. Download the latest version from http://www.python.org/.
 It is highly recommended that users install the latest patch version
 of python as these contain many fixes to serious bugs.