-C chase with prompting
	-CC chase without prompting
	-R don't chase
with defaults dependent upon authentication method used.
rebind callback also needs to be extended to support SASL and
provide information for prompting purposes.  Good intro project.

Replace old Id as needed (back-tcl).
Leave updating of contribWare to contributors (for now).

chase w/o prompting, disable referrals).

by Hallvard's IDL changes!

Fix printf formats, remove unused variables, add missing prototypes in slapd,
add static/const, add some return types or change to void return type.