Merge pull request #1001 from scitran/web-errors

api/auth/__init__.py

api/auth/apikeys.py

api/auth/authproviders.py

api/dao/__init__.py

api/dao/basecontainerstorage.py

api/dao/consistencychecker.py

api/dao/containerstorage.py

api/dao/containerutil.py

api/dao/dbutil.py

api/dao/hierarchy.py

api/dao/liststorage.py

api/files.py

api/handlers/collectionshandler.py

api/handlers/containerhandler.py

api/handlers/devicehandler.py

api/handlers/listhandler.py

api/handlers/refererhandler.py

api/handlers/reporthandler.py

api/handlers/userhandler.py

api/jobs/batch.py