updates to environmentbase for fix on root volume type assignments breaking in certain cases.  need a long-term fix, but this works for now.
updates to environmentbase for fix on root volume type assignments breaking in certain cases.  need a long-term fix, but this works for now.

vladlosev/cloudformation-environmentbase,DualSpark/cloudformation-environmentbase,vladlosev/cloudformation-environmentbase,DualSpark/cloudformation-environmentbase,23andMe/cloudformation-environmentbase