GS-803 Build version advanced to 6.6.0.2594.257
GS-803 Build version advanced to 6.6.0.2594.257

svn path=/trunk/openspaces/; revision=38288


Former-commit-id: 6f8a5d90cb476f5d29c3cb127806478a6cbac343
Gigaspaces/xap-openspaces,Gigaspaces/xap-openspaces,Gigaspaces/xap-openspaces