Initial commit of code to work with new structured data extension
Merge branch 'master' into sd_harvest

Conflicts:
	lib/ContentArchiveValidator.php
Enhanced the harvesting of structured data; Created connectors for some sample structured datasets
Merge branch 'master' into data_harvest
Added extensions for Event and Occurrence
Merge branch 'master' into data_harvest
Merge branch 'master' into data_harvest
DATA-1293 Double quote (representing inches) converted to single quote (representing feet)
Merge remote-tracking branch 'upstream3/master'
Merge branch 'master' into data_harvest
Quick FishBase connector maintenance.
Updated ADW connector
Merge remote-tracking branch 'upstream3/master'
DATA-1274 Create repeatable connector for access database, Rotifers of the World.
DATA-1274 Follow-up.
Maintenance for NorthAmericanMammals resource.
Update WikimediaPage.php
DATA-1280 Diptera of Central America
Merge branch 'master' into data_harvest
Merge remote-tracking branch 'upstream3/master'