Update ChangeLogs for v0.3.1

snf-image-helper/ChangeLog

+2012-01-26, v0.3.1
+	* Fix a bug in the OS detection code
+
 2012-01-12, v0.3
 	* Warn and in some cases fail if the instance is of an unknown
 	* Force a resize when the filesystem is clean, even if resize2fs

snf-image-host/ChangeLog

+2012-01-26, v0.3.1
+
 2011-01-12, v0.3
 	* Put all helpers run-time created files in a tmpfs jail
 	* Remove the ARCH field from the image name