updates initialState so that it take props into account

Author: chollier

src/DateTimeField.jsx

@@ -30,9 +30,9 @@ DateTimeField = React.createClass({
         left: -9999,
         'z-index': '9999 !important'
       },
-      viewDate: moment().startOf("month"),
-      selectedDate: moment(),
-      inputValue: moment().format(this.props.inputFormat)
+      viewDate: moment(this.props.dateTime, this.props.format).startOf("month"),
+      selectedDate: moment(this.props.dateTime, this.props.format),
+      inputValue: moment(this.props.dateTime, this.props.format).format(this.props.inputFormat)
     };
   },
   componentWillReceiveProps: function(nextProps) {

src/coffee/DateTimeField.jsx.coffee

@@ -26,9 +26,9 @@ DateTimeField = React.createClass(
       position: 'absolute'
       left: -9999
       'z-index': '9999 !important'
-    viewDate: moment().startOf("month")
-    selectedDate: moment()
-    inputValue: moment().format(@props.inputFormat)
+    viewDate: moment(@props.dateTime, @props.format).startOf("month")
+    selectedDate: moment(@props.dateTime, @props.format)
+    inputValue: moment(@props.dateTime, @props.format).format(@props.inputFormat)
 
   componentWillReceiveProps: (nextProps) ->
     @setState