message: demo(datepicker): change main tab name to overview
diff: @@ -10,7 +10,7 @@ let titleDoc = require('html-loader!markdown-loader!./docs/title.md');
  template: `
  <demo-section [name]="name" [src]="src">
  <tabset>
  - <tab heading="Current">
  + <tab heading="Overview">
  <p>Datepicker is a highly configurable component that adds datepicker functionality to your pages. You can
  customize the date format and language, restrict the selectable date ranges.</p>
  <h2>Contents</h2>
  