minor updates
Discover connectionstring when databasemismatch
create all controllers when Detailview as previewrow
add a WPF DynamicElement implementation
XpandXafGridColumn cannot be cast to XafGridColumn

http://www.expandframework.com/forum/6-bugs/3493-xpandxafgridcolumn-cannot-be-cast-to-xafgridcolumn.html#4222
13.1.5.18