local save
local save & fix messageToAllNeighbors bug
Merge branch 'develop' into feature/hyperanf
copy and paste from maxflow(in test). unfinished.
modify HyperANF_Pregel
modify maxflow
.
delete comments
develop merge
fix maxflow
fix maxflows
api (maxflow and scc) are 80% ended
merge from develop
retrieveAttribute  -> g.retrieveEdgeAttribute
add comment to SCCs
add TODO comment in MathAppend.x10
add api/hyperanf.x10
merge develop
modify hyperanf
develop merge