Formatted and organized imports.
Changed so that work entities are reused (using put-code), and so that
we don't leave cruft in the work table and related tables (orphans
deleted).
Updated expired certs (used for integration tests).
Updated jquery location in local playground.
Updated to throw an error if an incorrect put-code is supplied for a
work.
Merge branch 'master' into dev-resuseExistingWorksInDb

Conflicts:
	orcid-web/src/main/resources/freemarker/playground.ftl
Merge pull request #168 from ORCID/dev-resuseExistingWorksInDb

Dev reuse existing works in db