FORUM-851: Private Post is not displayed when clicking on 'Click here' link

Problem analysis
- Implement the link redirect action inside onclick function
FORUM-804: [IE8] Can not jump to the last reply when clicking on 'View the latest reply'

Fix description:
	- In IE, use scrollTo function to scroll to specific item
FORUM-835: When moving a question, it's activity should also be moved

Fix description
- Implement an event listener which is triggered when a question is moved
FORUM-836: Topic with two message's pages is lost when deleting first message of page 2

Fix Description:
- Clear postListCount cache to reload postListAccess list after a post deletion.
FORUM-751: XSS with bbcode tag which support attribute like size, color, url

Fix description:
- BBCode engine filter out some illegal characters like " , ' , ;
- Avoid using replaceAll to improve performance.
FORUM-840: [Answer] Improvement code - Can edit comment of other user on question
FORUM-540: Checkbox to select/ unselect all categories in Export Categories screen does not work

Fix description
- Add CheckBox.js in UIExportForm template
- Apply checkbox utils for check/uncheck all only for table Categories in Export Categories popup
FORUM-525: Reset data of Signature after updating avatar in Forum

Problem analysis:
- When uploading an avatar, the UIForumUserSettingForm form updates everything. As the result, all values of input fields are resetted.

Fix description:
- When uploading avatar, upload only the field Avatar to display. Other fields no need to update.
Merge commit '392ad8cef07dc07d5bb098532272564e00edc114' into HEAD