Bump version to 19. Earlier images will get static routes returned
from the DB when the routertype is "static" since those images are likely to not have ddijk support on them. Newer images will have ddijk, and so will compute the routes themselves; do not send them back. Note that static-old implies that nodes will get the routes no matter what, although old images will probably barf if gets that; I don't view this as a problem since very people are going to request static-old.