Create en.json

Switch to json based I18n system as used by MW 1.23+

i18n/en.json

@@ -0,0 +1,11 @@
+{
+	"@metadata": {
+		"authors": [
+			"Garrick Van Buren"
+		]
+	},
+	"skinname-foreground": "Foreground",
+	"foreground-desc": "Provides a skin that focuses on putting your content in the foreground",
+	"foreground-browsermsg": "may not look as expected in this version of Internet Explorer. We recommend you upgrade to a newer version of Internet Explorer or switch to a browser like Firefox or Chrome.",
+	"foreground-menutitle": "Menu"
+}