Remove Python version from README.txt and update current Python version in INSTALL.txt.

README.txt

@@ -31,10 +31,3 @@ Installing Zope
 
   Follow the instructions in "doc/INSTALL.txt" to install Zope.
 
-Notes
-
-  * This release requires Python 2.2.3.
-
-  * Don't forget to check the Zope web site and mailing list.
-
-  * Read the source and have fun!

doc/INSTALL.txt

@@ -7,7 +7,7 @@ Building and installing Zope from source
 System requirements when building from source
 
    bash or another Bourne shell variant
-   Python 2.2.3 or later installed somewhere in the system PATH
+   Python 2.3.2 or later installed somewhere in the system PATH
    GNU make
    A C compiler (gcc recommended)