GS-803 Build version advanced to 6.6.0.2591.258
GS-803 Build version advanced to 6.6.0.2591.258

svn path=/trunk/openspaces/; revision=35519


Former-commit-id: 6882b533418af54cb4714c1aa71eab781538036d
Gigaspaces/xap-openspaces,Gigaspaces/xap-openspaces,Gigaspaces/xap-openspaces