error on bdii class included in {sam,site,top}bdii

Add config back to init.pp
Move config include in init.pp

Previously bdii_delete_delay difference in topbdii meant calling config in each bdii service.
Now different services that require a delete delay (ie top) can do so
via hiera.
Add slapd threads / loglevel tunables

Via either params.pp or hiera therein
Merge pull request #8 from bendylan/refactor

Refactor to allow configurable vars in {top,site}bdii