title: PrimeNG datatable not editable
body: <p>Hi I'm trying to use primeNG for datatable but the output is just a basic table with no properties of it applied.
  Component:</p>
  
  <pre><code>import { Component } from '@angular/core';
  import {AccordionModule} from 'primeng/primeng';     //accordion and accordion tab
  import {MenuItem} from 'primeng/primeng';  
  import {DataTableModule} from 'primeng/components/datatable/datatable';
  import {SharedModule} from 'primeng/primeng';
  import { sampleProducts } from './products';
  
  @Component({
    selector: 'data-grid',
    templateUrl: './data-grid.html'
  })
  export class DataGridComponent {
    private data: any[] = sampleProducts;
  }
  </code></pre>
  
  <p>template:</p>
  
  <pre><code>&lt;p-dataTable [value]="data" [editable]="true"&gt;
  &lt;p-column field="PayScaleArea" header="PayScaleArea"&gt;&lt;/p-column&gt;
  &lt;p-column field="PayScaleTypeCode" header="PayScaleTypeCode" [sortable]="true"&gt;&lt;/p-column&gt;
  &lt;p-column field="MeritPercentage" header="MeritPercentage" [sortable]="true"&gt;&lt;/p-column&gt;
  &lt;p-column field="CreatedBy" header="CreatedBy"&gt;&lt;/p-column&gt;
  &lt;p-column field="CreatedDate" header="CreatedDate"&gt;&lt;/p-column&gt;
  </code></pre>
  
  <p></p>
  
  <p>app.module:</p>
  
  <pre><code>    import { NgModule } from '@angular/core';
  import {FormsModule} from '@angular/forms';
  import { BrowserModule } from '@angular/platform-browser';
  import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
  import { AppComponent } from './app.component';
  import {AccordionModule} from 'primeng/primeng';     //accordion and accordion tab
  import {MenuItem} from 'primeng/primeng';  
  import {DataTableModule} from 'primeng/components/datatable/datatable';
  import {SharedModule} from 'primeng/primeng';
  import { DataGridComponent } from './data-grid.component';
  
  
  @NgModule({
     bootstrap:    [AppComponent],
     declarations: [AppComponent,DataGridComponent],
     imports:      [BrowserModule, BrowserAnimationsModule, AccordionModule,DataTableModule,SharedModule]
  })
  export class AppModule {
  }
  </code></pre>
  
  <p>output:
  Looks like normal table.
  Is there anything missing in the setup. </p>