added configuration of olcRootPW for the cn=config database
configured phpldapadmin to access the cn=config database
removed unneeded line for ldap database setup
Merge branch 'pla_slapd_config' of https://github.com/jstruebel/openldap into jstruebel-pla_slapd_config

Conflicts:
	overlay/usr/lib/inithooks/bin/openldap-reinit.sh
Merge branch 'jstruebel-pla_slapd_config'