plus these changes unhidden changes:
	remove now meaning --enable-discreteaci configure option
	fix ITS#451, slapd filters
	Add ber_bvecadd() to support above
	constify ldap_pvt_find_wildcard() and misc slapd routines
	renamed some slap.h macros
	likely broken something

Changes outside of #ifdef include three value filter processing.

additional schema items.

attributes of the syntax.  Such attribute values be transferred
using binary syntax unless ber2str/str2ber routines are provided.
Used in conjunction with ";binary" attribute description option
and/or the Binary syntax.

routines to separate file to keep schema.c of managable size.