updated to official gitignore
updated to official gitignore


Former-commit-id: ceaffac8a64e557d8a1d3b8a8b2922d9906ebbfe
StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011,StackableRegiments/metl2011