Fixes #1270
Changed MetroDialogOptions to a DependencyProperty
Removed duplicate DependencyProperty definition.
Merge pull request #1277 from Tide/1270.DialogAccentFix

Fixes #1270
xaml formatting for dialog styles
set mahapps to 0.13.1.0 and resources to 0.2.1.0
0.13.1 release notes
Click on Expander header support
Wording
Now Splitbutton popup closes even when no selection changed event fire (fixes #1295)
Merge pull request #1296 from QuantumDeveloper/Split_DropDownButtons

Now Splitbutton popup closes even when no selection changed event fire (...
Merge pull request #1291 from Dotnetifier/patch-1

Click on Expander header support
Merge pull request #1289 from xxMUROxx/hotfix/Make_MetroDialogOptions_DependencyProperty

Changed MetroDialogOptions to a DependencyProperty
Remove duplicate property BorderThickness setter.

Remove property BorderThickness setter with value 1.
Make titlebar non-focusable
Merge pull request #1305 from jen20/fix-titlebar-focus

Make titlebar on MetroWindow non-focusable
Fixes #1300 Reset Storyboard of MetroProgressBar when Visibility is set to Visible
Merge pull request #1302 from oloopy/patch-1

Remove duplicate property BorderThickness setter.
Merge pull request #1306 from badbredren/master

Fixes #1300 Reset Storyboard of MetroProgressBar when Visibility is set ...