Changed base console logging level to WARNING to reduce console clutter.
The base file logging level remains at FINE. These can still be adjusted
on a node by node basis.
Added tool to list network interfaces. This is used when configuring
which adapters a Fabric node will use for discovery/connectivity:
1. New class added (NetworkInterfaces.java)
2. FabricLauncher.java extended to support the new tool.
3. fabadmin extended to support the new tool ("-i" option) and the man
page updated.
4. fabinstall now includes instructions on determining the available
network interfaces as part of post installation configuration.
Removed fabric.tools.simulator from the build -- not required.
Corrected a SQL error -- invalid value for constraint.
Added code to clean up the Registry as part of Fabric Manager
initialisation. Several tables are cleared: ACTORS, BEARERS, DATA_FEEDS,
NODE_IP_MAPPING, NODES, PLATFORMS, SERVICES, TASK_NODES, TASK_SERVICES,
TASK_SUBSCRIPTIONS, and TASKS. The NODE_NEIGHBOURS table is already
cleared by an autodiscovery fablet.

Table rows that have the field named "persistence" with the value
"static" (specifically in JSON: {"persistence":"static"}) as one of
their attributes are protected from deletion. Note that only tables that
support attributes or their equivalent have this option available.
A new attribute has been added to predefined Registry entries to protect
them from deletion (for tables that support attributes or their
equivalent); this is a field named "persistence" with the value
"static", specifically in JSON: {"persistence":"static"}.