Initial commit of the REST API source model
Merge Source classes, working filteres REST API source
Remove method for clarity
Initial commit of the origins code
Add missing origin classes
Add site_media to the gitignore file
Compute hash on the fly
Enable origin based code
Remove db_drivers app
Store all origin generated attributes
Add admin interface to REST origin model
Continue refactoring of the data_drivers app models to work with the new origin model
Improve REST columns admin interface
Add column rename support to the REST source
Further code consolidation, finish the REST source
Rename variable, fix typo
Detect and report accesing unknown attributes of fields
Improve webservice source
PEP8 cleanups
Fix spreadsheet import