[ADF-852] Form style Material 2 (#2151)

* mdl2 transition part form 1

* hyperlink

* radio buttons

* label

* people component

* [ADF-852] moved textarea to new angular material

* number widget

* change error multiline

* [ADF-852] added md desgin for dropdown

* [ADF-852] removed unused css file

* functional widget

* error dropdown

* [ADF-852] - changed to new md date

* remove md-date-time-picker dependency in ng2-alfresco-from

* [ADF-852] conversion dynamic table phase 1

* container widget

* remove test unused

* validation change

* [ADF-852] convert dynamic table phase 2

* [ADF-852] improving style and fixing bugs

* move custom style for form in form.scss

* error footer refactor

* fix models and test

* [ADF-852]- fixed minor twitch on dynamic table

* align fields and fix tests dropdown

* disabling button in readonly
clean mdl form start process form

* align dropdown

* [ADF-1048] Upload widget can manage multiple files. (#2134)

* [ADF-1048] improving upload widget

* [ADF-1048] added ability to upload multiple file on upload widget

* [ADF-1048] added multiple upload elements on upload widget

* [ADF-1048] - show all the files on the completed form

* [ADF-1048] fixed wrong selecion on displya upload

* [ADF-1048] removed fdescribe from upload widget

* date validation and custom moment data adapter

* move content widget in the widget folder

* add style fields and theming

* color primary radio and checkbox

* fix amount widget and colors

* change ViewEncapsulation and fix date style button issue

* empty form customization 1736

* focus label style

* [ADF-224] fix the rendering of custom stencils when form is opened in readonly state. (#2161)

* [ADF-224] Fixed rendering of custom stencil in readonly mode

* [ADF-224] improved variable name

* test fix

* container filter in form model creation

* show display value correctly

* fix change date and test

* fix date editor and add some test coverage for date

* style minor issue

* fix new unused local import rule

* fix test date

* strict date check

* fix analytics failing test

* restore null as default in model

* unify model diagrams and analytics

ng2-components/ng2-activiti-form/README.md

@@ -9,10 +9,12 @@
   * [Services](#services)
 - [Prerequisites](#prerequisites)
 - [Install](#install)
-- [ActivitiForm Component](#activitiform-component)
+- [Form Component](#form-component)
   * [Properties](#properties)
+    + [Form Field Validators](#form-field-validators)
   * [Advanced properties](#advanced-properties)
   * [Events](#events)
+  * [Custom empty form template](#custom-empty-form-template)
   * [Controlling outcome execution behaviour](#controlling-outcome-execution-behaviour)
 - [Activiti Content Component](#activiti-content-component)
   * [Properties](#properties-1)
@@ -226,6 +228,21 @@ onFormSaved(form: FormModel) {
 }
 ```
 
+### Custom empty form template
+
+You can add a template that will be show if no form definition has been found
+
+```html
+<adf-form .... >
+
+    <div empty-form >
+        <h2>Empty form</h2>
+    </div>
+
+</adf-form>
+
+```
+
 ### Controlling outcome execution behaviour
 
 If absolutely needed it is possible taking full control over form outcome execution by means of `executeOutcome` event.