Keep dependencies in order
Keep dependencies in order

Don't sort the dependencies, keep them in the order they were in the
Blueprints file and use a set to prevent adding duplicates to the list.

Change-Id: Icade91d035ccfb12c26ba0584144c1723607019c

google/blueprint,Tiger66639/blueprint,danw/blueprint,jgennis/blueprint,google/blueprint,colincross/blueprint,Tiger66639/blueprint,jgennis/blueprint,colincross/blueprint,yuhangwang/blueprint,danw/blueprint,yuhangwang/blueprint