fixing bug #5437 by removing obsolete code
fixing bug #5190 by using javascript promises (thanks YoCha)

Conflicts:
	question-reply/question-reply-war/src/main/webapp/questionReply/jsp/listQuestionsDHTML.jsp
Feature #6071 :
- wiring quick info
- wiring kmelia
- wiring web pages
- wiring blog
(Fixing RSS Loading errors)

Feature #6071 : renaming a factory into provider

Feature #6071 : applying the new re-factored subscription services.
(Fixing Forum RSS that did not work...)

Feature #6071 : adding centralized possibility to skip the subscription notification on small modifications of the content of a contribution.

Conflicts:
	question-reply/question-reply-jar/src/main/java/com/silverpeas/questionReply/control/SilverpeasQuestionManager.java