add DataBinding
data buinding
cross thread operation with data binding
stylecop
allcommit
Class diagrams
Merge branch 'master' of https://github.com/idobarkan/design-patterns

Conflicts:
	Ex02_new/A14 Ex03 Lee 300318573 Ido 031180474.sln/FaceBookBackEnd/FacebookBackend.cs
	Ex02_new/A14 Ex03 Lee 300318573 Ido 031180474.sln/FaceBookBackEnd/IFriendSuggestionsProvider.cs