Fix missing flyout external click code

How did I forget that piece of code and named a MouseDown event handler KeyDown!?
Merge pull request #1011 from 100GPing100/patch-6

Fix missing flyout external click code
Fix window commands focus visual style
Merge pull request #1012 from 100GPing100/patch-7

Fix window commands focus visual style
Tile font size

Added Tile.TitleFontSize
Added Tile.CountFontSize
Tile font size

XAML side.
Visualizing color brushes in ellipses
Merge pull request #1016 from vegar/colors.ellipse

Visualizing color brushes in ellipses
Merge pull request #1013 from 100GPing100/patch-8

Tile font size
Fixed colors not changing with theme
Swapped <string, brush> dictionary for plain <string> list
Added BindableResourceBehavior.cs to .NET45 project
Merge pull request #1015 from vegar/showingcolors.fix

Fixed colors in colors-tab not changing with theme