Add pickers test files

spec/components/date_picker.cjsx

@@ -1,5 +1,7 @@
 DatePicker = require '../../components/date_picker'
 
 module.exports = React.createClass
+  displayName: 'DatePickerTest'
+
   render: ->
     <DatePicker />

spec/components/time_picker.cjsx

@@ -1,6 +1,8 @@
 TimePicker = require '../../components/time_picker'
 
 module.exports = React.createClass
+  displayName: 'TimePickerTest'
+
   render: ->
     <div>
       <TimePicker format="ampm" />

spec/index.cjsx

@@ -5,6 +5,7 @@ Aside         = require './components/aside'
 Autocomplete  = require './components/autocomplete'
 Button        = require './components/button'
 Card          = require './components/card'
+Calendar      = require '../components/calendar'
 Dialog        = require './components/dialog'
 Dropdown      = require './components/dropdown'
 FontIcon      = require './components/font_icon'
@@ -18,10 +19,12 @@ Clock         = require './components/clock'
 TimePicker    = require './components/time_picker'
 
 Test = React.createClass
+  displayName: 'App'
 
   # -- Render
   render: ->
     <app data-toolbox={true}>
+      <DatePicker />
       <TimePicker />
     </app>