Added Popup Control

Change-Id: I6e00775ea87bf891ccf8f281407a126507ee21c4
Reviewed-by: Jarosław Staniek <staniek@kde.org>
Added BusyIndicator Control

Change-Id: I183dbe58d6a0cc4aa6eb586b83363883ae5f3346
Reviewed-by: Jarosław Staniek <staniek@kde.org>
Removed unnecessary comment and added missing license text.

Change-Id: I8857f018ba3077f6fbee47ef5583aa7d94dec766
Reviewed-by: Jarosław Staniek <staniek@kde.org>