This change starts the process of splitting up the Builder into logical components. Remove builder.flags and move it to the new dispatchRequest object. Use runConfig from dispatchRequest instead of from the builder. More progress removing things from the Builder struct. Signed-off-by: Daniel Nephin <dnephin@docker.com> Upstream-commit: e59327aaac338bd350746e0e6479489f21a0a1fa Component: engine