queue functions. This includes a private queue.h header derived
from FreeBSD. It is simpler to just use our own header rather than
try to deal with macros that may or may not be present in various
queue.h incarnations.
how a user's groups are looked up. Legal values are static (just
the kernel list from getgroups), dynamic (whatever the group database
includes) and adaptive (only use group db if kernel group list is
full).
Bump the minor number accordingly and update the documentation. A
plugin must check the sudo front end's version before using the
plugin_args parameter since it is only supported for API version
1.2 and higher.
