Escaping of keys does not work with . characters

[alexdawes]

When a key has a . in, handlebars.net fails to find the key, even when escaping with [...]

using System;
using HandlebarsDotNet;
using Newtonsoft.Json.Linq;

namespace HandlebarsTester
{
    public static class Program
    {
        internal static string Test(string template, string json)
        {
            var jObject = JObject.Parse(json);
            var compiled = Handlebars.Compile(template);
            var result = compiled.Invoke(jObject);
            return result;
        }

        public static void Main(string[] args)
        {
            Console.WriteLine(Test("foo.bar: {{ [foo.bar] }}", "{ \"foo.bar\": \"FOO\" }"));
            Console.ReadLine();
        }
    }
}

The above example prints: foo.bar: . The equivalent using handlebarsjs successfully renders this as foo.bar: FOO