fetch the major OS version. If we're running Windows >= 6 (Vista)
_and_ npf.sys isn't running, warn the user in Wireshark and TShark.
Add a recent prefs item to disable the warning in Wireshark.
svn path=/trunk/; revision=22877
setuid instead of Wireshark. Remove the "DANGEROUS" notices, but leave it
disabled by default. Whine if the user runs Wireshark or TShark as root.
Add a preference to disable the whining. Add a "setuid-root" script that
can be used to switch dumpcap and TShark's setuid-ness on and off for
development and testing. Update the release notes and README.packaging.
svn path=/trunk/; revision=22733
Gerald Combs