Small fix
Merge pull request #2 from ziez/master

Fixed method AppDomainExtensions.LoadAssemblyIntoAppDomain
Merge branch 'master' of https://github.com/Catel/Catel
(+) [CTL-88] Added SelectDirectoryService to let the user select a directory
(*) [CTL-84] All converters based on ValueConverterBase can now be chained after eachother by using the Link property
(*) [CTL-86] Improved DoubleClickToCommand behavior for grids
(+) [CTL-82] Added ViewModelToViewConverter to Silverlight projects
(*) [CTL-83] ChangeNotificationWrapper now supports both collection and property changes at the same time
(+) [CTL-85] Added ServiceDependency markup extension to Silverlight 5 project (MarkupExtension is not supported in SL4)
(*) [CTL-81] Prevent a change in case the validationsummary has not changed which should improve performance in some cases
Updated all nuget packages to the latest version
(*) [CTL-87] The TypeFactory circular dependency protection now ignores if duplicate types are requested directly after eachother. This might result in unwanted behavior if the same type is used as injection in the same type, but these cases are very rare. This changes fixes an issue where prism resolves the same type several times after eachother
Removed signing from setup package because code signing certificate has expired
(+)[CTL-91] Added ViewExportService (NET40)
Small compatibility update for ViewExportService and Silverlight
Updated history.txt
Restore export model clipboard functionality for NET version of ViewExportService.
Updated copyright notice on all files
Added NDepend project
Small history.txt update