Add fulcrum fusion spec for creating record

Issue #6.
Add an integration-level spec for creating a record with POST data.
Make trvial whitespace change
Make ? method return a boolean
Return proper statuses for creating records

Issue #6.
Add spec for not performing a create for a duplicate record.
Fix bug that didn't return a proper status when performing a create for
a duplicate record.
Refactor RecordCreator to return proper errors when creating one has
failed.