Add a bit about default neighbor definitions
Add a bit about default neighbor definitions

pbirsinger/aspNew,richardxia/asp-multilevel-debug,shoaibkamil/asp,richardxia/asp-multilevel-debug,mbdriscoll/asp-old,pbirsinger/aspNew,shoaibkamil/asp,mbdriscoll/asp-old,pbirsinger/aspNew,richardxia/asp-multilevel-debug,mbdriscoll/asp-old,mbdriscoll/asp-old,shoaibkamil/asp