Add the worst Mustache parser in the world

src/Update/CopStache.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Squirrel.Update
+{
+    public static class CopStache
+    {
+        public static string Render(string template, Dictionary<string, string> identifiers)
+        {
+            var buf = new StringBuilder(template);
+
+            foreach (var key in identifiers.Keys) {
+                buf.Replace("{{" + key + "}}", SecurityElement.Escape(identifiers[key]));
+            }
+
+            return buf.ToString();
+        }
+    }
+}

src/Update/Update.csproj

@@ -75,6 +75,7 @@
       <Link>Properties\SolutionAssemblyInfo.cs</Link>
     </Compile>
     <Compile Include="AnimatedGifWindow.cs" />
+    <Compile Include="CopStache.cs" />
     <Compile Include="Mono.Options\Options.cs" />
     <Compile Include="NativeMethods.cs" />
     <Compile Include="Program.cs" />