migration scripts.
update site scripts YG
update migration scripts YG
commit global tag change before leaving. YG
Merge pull request #323 from yuyiguo/DBS_3_2_0_t

Dbs 3 2 0 t
Disable prod/global,prod/phys01,prod/phys02 on cmsweb
Merge pull request #328 from giffels/dbs3-disable-instances

Disable prod/global,prod/phys01,prod/phys02 on cmsweb