Fix timeout error while showing the network graph.
Created by: hiroponz
Grit::Git::GitTimeout is occured, if the very large repo like git repo is shown on the network graph.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: hiroponz
Grit::Git::GitTimeout is occured, if the very large repo like git repo is shown on the network graph.