Partially overhauled content system's metadata handling, Fixed & Added tools, Added missing resources, Other minor fixes, Added index compiler

Update .gitignore, .htaccess, and 48 more files...

commons/strings/fr/test.json

@@ -0,0 +1,7 @@
+{
+	"test.header.title": "Page de test",
+	"test.controls": "Options de débogage",
+	"test.controls.borders": "Afficher/Cacher les bordures",
+	"test.app.card.demo": "Vignette d'application",
+	"test.content.card.demo": "Vignette de contenu"
+}