Mailform association exception

http://www.expandframework.com/forum/6-bugs/3001-121-to-122.html
added nuget package eXpandDashboardWin.nuspec
(cherry picked from commit c812fd90bef727c743db8e0dc79c782a580c5eba)
InvalidCastException in XpandRole

http://www.expandframework.com/forum/8-discussion/3200-issue-in-12259.html#3201
- MasterDetail: ScrollBar issues fixed.
(cherry picked from commit 3ea57af0526469442b9665fd70b6e8823e28ff4e)
wrong casting
Security: ObjectOperationPermissionExtensions
mention nuget in downloads page
Dashboard view Missing from model
(cherry picked from commit e3a58b5034d115eaa46ff6f75d81fcdb5dc885b3)
Dashboard module missing default views
(cherry picked from commit 2a3156a343e630a3398916e05944b944e20cf29a)
Dashboard-->scripts fail

http://www.expandframework.com/forum/6-bugs/3198-error-rebuilding-from-sources-in-12259.html#3218
Security: wrong interface
Security:Userfriendly way to add permissions
Restore securitysystemextensions
mark DashboardDefinition
ModelDifference: editor action states
Modeldiffernce-->Exception is SecurityDummy
Enable Delete for Runtime members
Runtime members:UpdateAlias Expression
Use runtime members when core only is installed
Make Type editable when runtime