ModelDifference--> Support LastLayer Recreation

http://www.expandframework.com/forum/6-bugs/3791-major-bug-closing-model-editor-without-saving-changes-wipes-all-model-customizations/5617.html
code formatting
[AutoExpandAllTreeNodes]

http://www.expandframework.com/forum/8-discussion/3795-auto-expand-all-nodes-on-xpandtreelisteditor/5623.html
13.2.5.6
projectconverter 13.2.6
EFDemo update 13.2.6
13.2.6.1