ISPN-5007 Enhance the distribution script to detect missing artifacts
ISPN-5008 7.0.x missing cachestore-remote and extended-statistics modules

Replace <fileset/> with <file/> to have the script fail when the source files are missing.
Fix missing cachestore-remote and extended-statistics modules.
Revert "Revert rebalancing per cache"

This reverts commit 8cbba22ae625c7dd3e8f5ff389b71f4b49aec2b4.