[FileAttchment.Web --> configure Upload controls using model editor]

http://www.expandframework.com/forum/6-bugs/3729-fileattachment-bug-for-some-large-file.html#5380
issues with ModelEditorPropertyEditor

http://www.expandframework.com/forum/6-bugs/3730-problem-with-delete-item-in-model-diff-editor.html
MasterDetail-->the nested view model does not persist as expected
ModelDifference bug with runtime members
support for VS2013

http://www.expandframework.com/forum/5-installation-configuration-a-updates/3721-vs-2013-installation-problem.html#5346
13.1.8.21