graph: titan add unique id on edges
graph: titan add unique id on edges

Change-Id: Id461dba1d55994e39517a7eee2fb6ba95c06bb1d
Reviewed-on: http://softwarefactory-project.io/r/5276
Reviewed-by: Sylvain Baubeau <b0a7dc08a3f38d713e107103b0a85b0badc14b84@redhat.com>
Tested-by: Sylvain Baubeau <b0a7dc08a3f38d713e107103b0a85b0badc14b84@redhat.com>
Workflow: Sylvain Baubeau <b0a7dc08a3f38d713e107103b0a85b0badc14b84@redhat.com>
Tested-by: Jenkins CI <d95b56ce41a2e1ac4cecdd398defd7414407cc08@softwarefactory-project.io>

lebauce/skydive,skydive-project/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,safchain/skydive,redhat-cip/skydive,safchain/skydive,skydive-project/skydive,safchain/skydive,redhat-cip/skydive,skydive-project/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,safchain/skydive,redhat-cip/skydive,skydive-project/skydive,safchain/skydive,safchain/skydive,skydive-project/skydive,lebauce/skydive,lebauce/skydive