Tweaked the comment label for the lfd build target.. just 'Fedora Linux', thanks.
Updated the BUILD docs with the current name of the panda-imap distribution directory
Moved the TOPS-20 and VMS ports to unsupported.
Caught a few more imap-2007 references to be updated to panda-imap in docs/BUILD
Put Mark's copyright in docs/BUILD
Tweaked comments in Makefile to mention RHEL6 as well as RHEL5
Fixed perms for tools/ua and tools/an
Remove the ip6 temporary file during make clean
Fixed permission on src/osdep/unix/drivers and mkauths scripts