add a link in the main menu to feedback topic in the forum
add a link to the forum in the info section
Merge branch 'master' of https://github.com/misdoro/VAMDC-Portal

Conflicts:
	portal.war/src/main/webapp/layout/menu.xhtml
Merge pull request #14 from nicolasmoreau/master

Added a link to the vamdc foum in Info page