[login] Propose to the user the last username he used
Merge remote-tracking branch 'origin/guimier-connexion'

Conflicts:
	common/classes.json
	default/languages/en.json
	default/languages/fr.json
Merge branch 'master' into guimier-input

Conflicts:
	common/classes.json
	default/languages/en.json
	default/languages/fr.json