Tweaked test.
Added destructor handling to TemporaryFile.
Renamed class.
Replaced Tuple usage with a class.
Added convenience overload for executing processes with no input.
Made configuring a dispatcher timer with a specific interval more convenient.
Renamed FilePicker to more general FileSystemPicker.
Factored out some common code that handles file dialogs.
Added class that converts FileInfos to URIs. Also added tests for DirectoryInfo converter.
Made FileSystemPicker file-oriented instead of URI oriented and handle conversion to URIs with converters.
Moved some converters.
Refactored security service to use an injected IPrincipal.
Moved snippet registrations.
Updated AvalonEdit.
Updated Autofac.