docs(directive): edit directive class definitions
refactor(DecoratorFormatter): Fix a bad rename. DecoratorFormatter is now DirectiveModule
docs(directive): fix whitespace and a missed rename from 0e0f8d6
docs(InputDateLike): Improve and edit the class description
docs(NgTrueValue): Edits for dartdoc style.
docs(NgFalseValue): Edits for dartdoc style.
docs(ng-model): Fix typos and style
docs(ng-bind): Edits for dartdoc format
docs(NgModelConverter): Edits for style.
docs(directives): edits to directive docs
docs(orderBy): fix a small typo
docs(directives): Edit for dartstyle and clarity.

Closes #1037