[DEV] open new 1.5 development branch

This new branch is based on 1.4.6, which 1.5-dev0 is 100% equivalent to.
The roadmap has been updated.
diff --git a/CHANGELOG b/CHANGELOG
index 6672f98..6f52393 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,9 @@
 ChangeLog :
 ===========
 
+2010/05/23 : 1.5-dev0
+    - exact copy of 1.4.6
+
 2010/05/16 : 1.4.6
     - [BUILD] ebtree: update to v6.0.1 to remove references to dprintf()
     - [CLEANUP] acl: make use of eb_is_empty() instead of open coding the tree's emptiness test