The Software Porting And Archive Centre for HP-UX now has libpcap 0.6.2

The Software Porting And Archive Centre for HP-UX now has libpcap 0.6.2
binaries, so users only need to make sure they have that version
installed in order to have Ethereal (and tcpdump, and snort, and so on)
accept "lanN"-style names (i.e., names of the sort reported by lanscan
and handled by ifconfig), rather than "dlpiN".

Get rid of the patches to update libpcap, get rid of the discussion in
"README.hpux" of patching libpcap and just say "get 0.6.2", and make the
notes on HP-UX kernel patches to fix problems with capturing outgoing
packets a separate item in the list of items in "README.hpux".

Also update the error messages Ethereal and Tethereal display if they
can't open a device and the error is "can't find PPA for XXX" to say
"get 0.6.2" rather than "patch libpcap and recompile.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@3288 f5534014-38df-0310-8fa8-9805f1628bb7