Changed default address from __BROADCAST to __QUEUE.
Added ToString.
Experimenting with the tests.
Just general bugfixes and formatting.
This fixes chaining, ReplyTo doesn't work with subclasses right now.
Advanced chain routing is fixed, but the system doesn't handle child requests.
This fixes the issue with child requests.
Merge branch 'develop' of https://github.com/COCPORN/succubus into develop