Esri/arcgis-toolkit-dotnet — pull request #110 by jNery (2014-12-10 18:37:55+00:00)
Title: Added AttachmentEditor to Toolkit for WinDesktop and WinStore

This addresses #109

@dotMorten : Please code-review
- Added AttachmentEditor to Toolkit for WinDesktop and WinStore

Excluded in this branch is WinPhone because of FilePicker platform limitation which Esri/arcgis-runtime-samples can address in App.cs (including ContinuationManager which handles FileOpen/SavePickerContinuationEventArgs).