Add reference counting to AsyncObject
Hostname resolution support for Peers
Improvements to initscript and default configuration.

* Added absolute paths to the [node_db] and [debug_logfile] stanzas in the config file.

* Changed some tabs into spaces for consistency.

* Added directory tree sanity checking to initscript.

Signed-off-by: The Doctor <drwho@virtadpt.net>
Allow to full network limit in Amount::isLegalNet