Updated build script to support specifying source control revision as a command argument
Updated build script to support specifying source control revision as a command argument


Former-commit-id: b3e7663e326bdb65265ff9a29515e5962be5cec8
StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011