Move axis minimum and maximum values in the property map for consistency with the policy adopted in the rest of SIS
regarding ignorable / non-ignorable metadata. This is also consistent with the factory method in GeoAPI.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK7@1566666 13f79535-47bb-0310-9956-ffa450edef68