- add range and default to command line args
- fix unit test build on osx
- DAQ packet header conditional compilation for piglet
- add make targets for dev_guide.html and snort_online.html
- cleanup debug macros
- fix parameter range for those depending on loaded plugins (thanks to Siti Farhana Binti Lokman <sitifarhana.lokman@postgrad.manchester.ac.uk> for reporting the issue)
