Add i18n support

_locales/en/messages.json

@@ -0,0 +1,16 @@
+{
+	"extensionName": {
+		"message": "Make ReCaptcha's \"I'm not a robot\" accurate",
+		"description": "Name of the extension."
+	},
+
+	"extensionDescription": {
+		"message": "Makes ReCaptcha's \"I'm not a robot\" text more accurate",
+		"description": "Description of the extension."
+	},
+
+	"replacementText": {
+		"message": "I want to do unpaid image classification",
+		"description": "Text that \"I'm not a robot\" will be replaced with"
+	}
+}

_locales/qqx/messages.json

@@ -0,0 +1,13 @@
+{
+	"extensionName": {
+		"message": "(extensionName)"
+	},
+
+	"extensionDescription": {
+		"message": "(extensionDescription)"
+	},
+
+	"replacementText": {
+		"message": "(replacementText)"
+	}
+}

manifest.json

@@ -1,9 +1,11 @@
 {
     "manifest_version": 2,
-    "name": "Make ReCaptcha's \"I'm not a robot\" accurate",
+    "name": "__MSG_extensionName__",
     "version": "1.0",
 
-    "description": "Makes ReCaptcha's \"I'm not a robot\" text more accurate",
+    "description": "__MSG_extensionDescription__",
+
+    "default_locale": "en",
 
     "icons": {
 	"48": "icons/border-48.png"

recaptcha.js

@@ -1,4 +1,4 @@
 var label = document.querySelector('#recaptcha-anchor-label');
 if (label) {
-	label.innerText = 'I want to do unpaid image classification';
+	label.innerText = browser.i18n.getMessage('replacementText');
 }