FORUM-843: [IE8-Answer] Exception thrown when answer a question

Fix description:
	- Replace href by onclick

Conflicts:

	answer/webapp/src/main/webapp/templates/answer/webui/UIQuestions.gtmpl
FORUM-584: [Answers] Hard-coded Root category in the Breadcrumb
FORUM-554: [Forum] Hard-coded Tooltip in some forms (Bookmark, Private Messages)
FORUM-554: Add new key for Reply Message, Delete Message, Forward Message in Private Message.
FORUM-804: [IE8] Can not jump to the last reply when click on 'View the latest reply'

Fix description:
	- In IE, use scrollTo to scroll to specific item

Conflicts:

	forum/webapp/src/main/webapp/javascript/eXo/forum/UIForumPortlet.js