Add random response module

src/modules/loader.rs

@@ -9,6 +9,7 @@ use modules::discord::DiscordModule;
 use modules::lua::LuaModule;
 use modules::stdin::StdinModule;
 use modules::echo::EchoModule;
+use modules::random::RandomModule;
 
 pub struct ModuleLoader {
     types: BTreeMap<&'static str, fn(&Table) -> Box<Module>>
@@ -21,6 +22,7 @@ impl ModuleLoader {
         types.insert("lua", LuaModule::new as fn(&Table) -> Box<Module>);
         types.insert("stdin", StdinModule::new as fn(&Table) -> Box<Module>);
         types.insert("echo", EchoModule::new as fn(&Table) -> Box<Module>);
+        types.insert("random", RandomModule::new as fn(&Table) -> Box<Module>);
         ModuleLoader {
             types: types
         }