GS-803 Build version advanced to 6.6.0.2600.21
GS-803 Build version advanced to 6.6.0.2600.21

svn path=/trunk/openspaces/; revision=40446


Former-commit-id: 14da76f10a4d612f3469948b38694cf69a72a14a
Gigaspaces/xap-openspaces,Gigaspaces/xap-openspaces,Gigaspaces/xap-openspaces