global: CMSPRIMARYDATASET -> CMS-Primary-Datasets

* Changes collection indicator values to hyphenated versions (and
  plural) as well.  Amends data files records accordingly; the records
  now use the same values as collection name.
  (addresses #118) (closes #112)

* Renames and amends all formatting templates accordingly.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>