Through gh_80...
End of Icescrum#239 (Github 80)
Merge branch 'gh_80' into develop

Conflicts:
	esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/opinion/enterAllStudentsOpinions.xhtml
	esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/opinion/enterStudentsOpinions.xhtml