Initial commit to object models
added notebooks
updated to include provenance figure
Merge remote-tracking branch 'satra/source' into contrib/object-models
added links out to projects referenced in text
added title cells and code comments
added cells on querying NI-DM
enh: added extended provenance diagram
enh: a few prov updates
added term requirement
Merge remote-tracking branch 'localdm/source'

* localdm/source:
  added term requirement
  enh: a few prov updates
  enh: added extended provenance diagram
  added cells on querying NI-DM
  added title cells and code comments
  added links out to projects referenced in text
  Merge remote-tracking branch 'satra/source' into contrib/object-models
  updated to include provenance figure
  added notebooks
  Initial commit to object models
Merge pull request #1 from satra/master

moving from ni-dm to notebooks