Fixes JIRA issue SGF-295 allowing all Eviction Policy Actions (LOCAL_DESTROY, OVERFLOW_TO_DISK) to be specified on Local Regions configured using the Spring Data GemFire XML namespace.  This commit resolves the issue in the 1.4 XSD first in order to backport the fix to the SDG 1.4.2 release.
Fixed test issues in SubRegionNamespaceTest class involving Region fullPath property assertions.
Re-organized SDG dependency version properties in gradle.properties.