Apply submission for fileUrl from challenge 30047227 for https://github.com/appirio-tech/lc1-project/issues/274
Applying submisssions from challenge 30047226.  https://github.com/appirio-tech/lc1-project/issues/277
updated createdBy and updatedBy field type to bigint
Merge pull request #28 from mahnunchik/schema_changes

Submission: [serenity] Update field type on Challenge Service #30047223
Update curl script
Merge branch 'schema_changes' of github.com:appirio-tech/lc1-challenge-service into schema_changes
Merge pull request #30 from appirio-tech/schema_changes

Schema changes