Allow panorama dragging using touch.
Enable touch Manipulation events on Panorama control
Readd missing space.
Use PreviewTouchMove and PreviewTouchDown
* Refactor Mouse and Touch events.
* Allow movement with touch using velocity just like mouse.
* Change private vars to camelCase.
* Remove regions
Formatting.
Added a Converter to get a LeftMargin for TreeView
Added a TreeView Metro style
updated template for MetroContentControl based on feedback from @ipjohnson
Implemented a FlipView control.
Added a style for DataGrid
Updates to DataGrid style including styles from stefan-schweiger. Update
to match Azure DataGrid styling.
Update column header style. Add disabled style.
Update DataGrid styles to use Gray brush resources instead of color resources. Make the default DataGrid style more like stefan-schweiger's. Add Azure DataGrid
style as a separate resource.
added control to demo
missing resource
dropped AzureDataGrid style while working out what to do with it
Reverted change to Virutalizing ComboBox because it breaks grouping

Last change set the itemspanel to virtualizing but this breaks the grouping behaviour of the combobox
fix flickering Issue #419

fix the nasty flickering at window starting.