Initial commit of ostest script

- Not yet fully operational. Don't expect this to work.
Add ostest script which empirically verifies OS detection for all personalities

- Iterates one-by-one through the nmap-os-db and makes a VM for it.
- Nmaps the created VM
- Compares the recorded Nmap result against what honeyd creared
- Compiles results
Fix for segfault on NULL template to tcp_send
Fix README to reflect update from libevent 1.x to 2.x
Updated README to add instructions on how to use the ostest script
Added parameter to accept IP address, rather than hardcoding it
Assert root user for ostest script
Fix syntax error in ostest script
Merge branch 'personalityTest'
Fix straggling hardcoded IP in ostest
Fix for segfault on recieving icmp probe with no fingerprint to use
Enable verbose config file parsing error messages by default
Merge branch 'master' of ssh://helios/home/git/repositories/honeyd
Fix for bad call to errx that causes segfault. Removed the "%s".
Fixed NULL pointer error in ARP processing on empty template
Fix for long startup time on haystack with many nodes

- The libdnet addr_aton() function was doing DNS lookups!
- This is bad for efficiency (waiting a long time each lookup)
- Also bad for security (telling your nameserver, possibly the Internet
   what your haystack is!)
Merge branch 'issue21fix'

Conflicts:
	config.c
Remove hardcoded libevent code, replace with calls to actual libevent

- Mostly to do with tagging and marshaling
Update nmap-os-db and nmap-assoc files to newest versions
OSTEST: Remove hard coded path to /home/dan and fix script name usage