BS-1473, make it possible to change hibernate ehcache configuration, ehcache.xml is in bonita.home/server/platform/conf

- Fix for Windows
Revert "BS-1473, make it possible to change hibernate ehcache configuration, ehcache.xml is in bonita.home/server/platform/conf"

This reverts commit fcb1d17ecf2aeea32044ec1e56624d9a9e49cda4.
Merge branch 'master' into 'BS-1379_TransientData'