- fixed host lookup issue
- folded classification.lua and reference.lua into snort_defaults.lua
- apply defaults from parameter tables instead of relying on ctors etc.
- fix static analysis issues reported by xcode
- change policy names with a-b form to a_b for consistency
- make all warnings optional
- fix ip and tcp policy defines
- fix ip and icmp flow client/server ip init
- added plugin and logging examples to usage
