updated jshintrc
added 012-hello-angularjs.
added 013-angularjs-refactoring. Finished chapter 9.
Added 014-directives.
Added 015-repeat-template-directives.
Added 016-html-fragments.
Added 017-todo-list-dynamic-views.
Added 018- and 019-.
Added 020-hiding-unprocessed-moustaches.
Added 021-showing-hiding-removing-elems.
Added 022-table-striping.
Added 023-classes-and-styles.
Added 024-events.
Added 025-custom-event-directive.
Added 026-managing-boolean-attributes.
Added 027-managing-other-attributes.
Added 028-forms-implicit-model-creation.
Added 029-basic-form-validation.
Added 030-deferring-form-validation.
Added 031-form-input-elem-directives.