v5.1.0

What's Changed

• Add a url_templater configuration option (closes #10)
• Add an InvalidOptionValue exception
• Refactor TemplateShareButtonsPresenter to TemplateBasedPresenterMediator
• Remove factories
• Fix some test cases
• Fix some docblocks
• Update README.md
• Some improvement

Full Changelog: v5.0.1...v5.1.0