Added snippets to installer.
Added security service.
-Disable updates when user is not elevated. -Removed UserAccountControl library and re-implemented functionality.
Deleted package file.
Added EqualityComparer for FileInfos.
Added the ability to define a custom equality comparison for a Property<T>.
Added new settings related to autosave and remembering open files.  Also added property change events for these as well as the existing last diagram location.
Implemented storing and reloading files that were open when the application exited.  Also decoupled DiagramEditorViewModel from depending on PreviewDiagramViewModel.