modules/settings.js: Refactors getAsBool to check that saved value IS bool

Author: zlovatt

lib/modules/settings.js

@@ -66,15 +66,22 @@ aeq.settings = aeq.extend({}, {
 	},
 
 	/**
-	 * Gets setting and returns as boolean
+	 * Gets setting and returns as boolean value, or undefined if not boolean
 	 * @method
 	 * @memberof aeq.settings
 	 * @param  {string} sectionName Settings section name
 	 * @param  {string} keyName     Settings key name
 	 * @return {boolean|undefined}  Saved setting as boolean
 	 */
 	getAsBool: function(sectionName, keyName) {
-		return aeq.settings.get(sectionName, keyName) == "true";
+		var value = aeq.settings.get(sectionName, keyName);
+
+		if (value === "true")
+			return true;
+		else if (value === "false")
+			return false;
+
+		return undefined;
 	},
 
 	/**