auto height for the hint bar (#10)

News.xaml

@@ -178,7 +178,7 @@
 	</StackPanel.Resources>
 	<!--Styles Ends-->
 	<!--Hints Starts-->
-	<Border Margin="0,0,0,10" Height="30" Padding="2" BorderThickness="1" Background="{DynamicResource ColorBrush5}" CornerRadius="5" VerticalAlignment="Top" BorderBrush="{DynamicResource ColorBrush3}" Opacity="0.7">
+	<Border Margin="0,0,0,10" Padding="2,8" BorderThickness="1" Background="{DynamicResource ColorBrush5}" CornerRadius="5" VerticalAlignment="Top" BorderBrush="{DynamicResource ColorBrush3}" Opacity="0.7">
 		<Grid Margin="10,0,0,0">
 			<TextBlock x:Name="NewsHint" FontWeight="Bold" FontSize="12" VerticalAlignment="Center" Foreground="#FF000000">
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