CLOUDSTACK-7405: allowing VR meta-data to be accessed without trailing slash

Signed-off-by: Erik Weber <terbolous@gmail.com>
Signed-off-by: Sebastien Goasguen <runseb@gmail.com>
Updating pom.xml version numbers for release 4.3.1-SNAPSHOT

Signed-off-by: Sebastien Goasguen <runseb@gmail.com>
Update CHANGES file with list of bug fixes