made Node an instance of class Hashable
added module HdpH.Internal.Data.CacheMap.Strict as a generic hashtable-backed cache with random replacement
tweak to CacheMap
replaced list of connections in Comm module with connection cache
added debug output to Comm module
added 1ms delay before send/connect retries
fix: ignore connect/send errors (should only occur during shutdown)
added config option for connection cache
wired RTSConf option for connection cache into Comm module
Added CacheMap to the modules list to allow HdpH to properly build as a library
Merge branch 'feature-connection-lookup' into develop