fix a crash on aelemfast
fix typos
fix warnings
Checking in changes prior to tagging of version 2.03.

Changelog diff is:

diff --git a/Changes b/Changes
index bfd4db1..daef45f 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
 Revision history of B::Size2

+2.03 2013-05-17 11:34:22
+    - Fix a SEGV about aelemfast (#1, thanks to hirose31)
+
 2.02 2013-02-01 15:08:51
 	- Fix a SEGV