v0.8.6

• Add Polish translations [Marcin Lewandowski]
• Add French translations [Jean Lazarou]
• Add support for dialog-based forms (form dialog: true do...)
• Make forms remote by default
• Add remove_action resource builder method to disable default actions
• Add return_to resource builder method to customize create/update/delete return location
• Add breadcrumb admin builder method to override breadcrumb
• Add autolink: false table option to disable automatic row linking
• Add Trestle.init JS callback for scoped element initialization
• Add visual indicator for collapsed navigation blocks in tablet/collapsed view
• Decode cookie values when reading via Trestle.cookie.get
• Add configuration option for admin load paths
• Update vendored select2 version to 4.0.5
• Bump kaminari dependency to ~> 1.1.0
• Loosen dependencies on sass-rails and autoprefixer-rails