Backported support for LDAP over TLS from Pike 7.3. Rev: CHANGES:1.4 Rev: lib/modules/Protocols.pmod/LDAP.pmod/client.pike:1.26 Rev: lib/modules/Protocols.pmod/LDAP.pmod/ldap_globals.h:1.8 Rev: lib/modules/Protocols.pmod/LDAP.pmod/protocol.pike:1.7