unifdef -DSLAP_ACL_HONOR_MANAGE
unifdef -DSLAP_OVERLAY_ACCESS
unifdef -DSLAP_ORDERED_PRETTYNORM
unifdef -DSLAP_AUTHZ_SYNTAX
Move LDAP_COLLECTIVE_ATTRIBUTES, LDAP_COMP_MATCH, and LDAP_SYNC_TIMESTAMP
back behind LDAP_DEVEL (as these either too experimental or not yet
implemented).

handle compare in frontend if backend couldn't handle it (and returned SLAP_CB_CONTINUE; e.g. if wrapped around an overlay...)

move compare to frontend (disabled by default, only invoked if backend doesn't provide hook); honor ITS#3472 (disclose access check); fix ITS#3521 as well (check access to hasSubordinates); fix a problem in backend_attribute() with operational attrs; add backend_access() helper

global overlays need to set o_bd = frontendDB to return the error in case no database can be selected

filterentry cleanup

Need to implement filter support (for entryDN and subschemaSubentry).
Fixed hasSubordinate assert() bug in entry filters