TODO: Add support for logger hierarchy hookup from ServerHost AppDomain to parent AppDomain

[jthelin]

Configuring log4net logger hierarchies to work across AppDomain boundaries typically requires some non-trivial MarshalByRefObject jujitsu.

Investigate integration of this suggestion from StackOverflow using custom CrossDomainOutboundAppender / CrossDomainParentAppender mechanism into ServerHost library.

http://stackoverflow.com/questions/1091223/log4net-across-appdomains/23270706#23270706