replace text by icons in step informations (path player)
Add some translations
improve resource picker + little fixes in step preview css
Merge pull request #81 from InnovaLangues/master-axel

improve resource picker + little fixes in step preview css
add translations
Merge remote-tracking branch 'origin/master' into master-eric

Conflicts:
	Resources/public/js/Step/Partial/tree-item.html