Fixed bug in dynamic policy examples, some cleanup
IP prefix matching working, removed extraneous code.
cleanup network attach/detach methods
lots of cleanup
detangling virtualization code, removed confusing transform_network policy
Continuing to detangle virtualization, renamed methods for clarity and cleaned code.
working for bfs and spanning tree.
fixed bug in egress predicate
fix bug in recurse policy evaluation
significantly improved packet printing
more refactoring of topology abstraction functions
minor vdef printing improvements
added packet-tracing policies
refactor gateway vdef
added gateway topology w/ all hosts in same prefix, minor cleanup
removed no longer relevant tests
some renaming
type->ethtype when dealing w/ headers
Added example demonstrating tracing support on gateway virtualization
Optimized recurse to only set_network on self.policy during first eval, instead of every eval.
improved hack to generate packets where:
outport != inport
inport is value