v0.8.0

What's Changed

• Refactor redirect uri validations by @TiannaW24 in #19
• Gitlab migration by @dskgsa in #22
• Refactor gems to leverage Rails validator classes and be more modular by @h-m-m, 8c6d2b3...a728dc4

Full Changeset: v0.7.3...v0.8.0