* models.py: udpated docmetrics model, removed un-needed import
* Added simbad object ids to config file
* models.py: modified model for docmetrics, added simbad object ids
* scripts/sync_build.sh: added filesystem locking with pid check (via mklock/rmlock)
* test/test.py: added check on simbad objects
* SIMBAD object test data
* docmetrics.json: add test fields
* SimbadObjectIDs model was missing DocsDataCollection parent class and docs_fields attribute
* removed test/demo_collections/*.tsv files from version control
Merge pull request #1 from lbjay/expanded_docmetrics_fixed

* SimbadObjectIDs model was missing DocsDataCollection parent class and ...
Merge pull request #7 from aaccomazzi/expanded_docmetrics

Expanded docmetrics