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/en/sidebar.json

@@ -7,6 +7,7 @@
   "sidebar.text.applications": "Applications",
   "sidebar.text.libraries": "Libraries",
   "sidebar.text.electronics": "Electronics",
+  "sidebar.text.3d-print": "3D Printing",
   "sidebar.text.tools": "Tools",
   "sidebar.text.links": "Links",
   "sidebar.text.downloads": "Downloads",

commons/strings/en/test.json

@@ -0,0 +1,7 @@
+{
+	"test.header.title": "Test Page",
+	"test.controls": "Debugging options",
+	"test.controls.borders": "Show/Hide borders",
+	"test.app.card.demo": "Application card",
+	"test.content.card.demo": "Content card"
+}

commons/strings/fr/sidebar.json

@@ -7,6 +7,7 @@
   "sidebar.text.applications": "Applications",
   "sidebar.text.libraries": "Librairies",
   "sidebar.text.electronics": "Électronique",
+  "sidebar.text.3d-print": "Impression 3D",
   "sidebar.text.tools": "Outils",
   "sidebar.text.links": "Liens",
   "sidebar.text.downloads": "Téléchargements",

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"
+}