Code review comment for lp:~pkunal-parmar/ubuntu-calendar-app/DiaryViewDelegate

On Raring I get errors unrelated to the changes.

frank@nova:~/Source/Ubuntu/Calendar/DiaryViewDelegate$ qmlscene calendar.qml
"Error on creating style rule:
import QtQuick 2.0
import qmltheme 0.1
import Ubuntu.Components 0.1

HeaderDelegate{}

:5 Type HeaderDelegate unavailable
file:///usr/share/themes/Ambiance/qmltheme/HeaderDelegate.qml:110 Header is not a type
"
QQmlComponent: Component is not ready
file:///home/frank/Source/Ubuntu/Calendar/DiaryViewDelegate/EventDetails.qml:17: TypeError: Cannot read property 'header' of null