task/ta35-03 -- get job.id of records that match a given connote

nparcel/loader.py
* new method get_connote_job_id() which checks the "job" table for
  related "job_item" records with connote argument

nparcel/table/job.py
* new method connote_based_job_sql() which provides the raw SQL to
  generate connote-based job.id