Automatically add default filter subscription when necessary.

src/GlobalJsObject.cpp

Index: src/GlobalJsObject.cpp
===================================================================
--- a/src/GlobalJsObject.cpp
+++ b/src/GlobalJsObject.cpp
@@ -84,20 +84,22 @@ namespace
     // clearTimeout(), we can save that for later.
     return v8::Undefined();
   }
 
   v8::Handle<v8::Value> TriggerEventCallback(const v8::Arguments& arguments)
   {
     AdblockPlus::JsEnginePtr jsEngine = AdblockPlus::JsEngine::FromArguments(arguments);
     AdblockPlus::JsValueList converted = jsEngine->ConvertArguments(arguments);
-    if (converted.size() != 1)
-      return v8::ThrowException(v8::String::New("_triggerEvent expects one parameter"));
+    if (converted.size() < 1)
+      return v8::ThrowException(v8::String::New("_triggerEvent expects at least one parameter"));
 
-    jsEngine->TriggerEvent(converted[0]->AsString());
+    std::string eventName = converted.front()->AsString();
+    converted.erase(converted.begin());
+    jsEngine->TriggerEvent(eventName, converted);
     return v8::Undefined();
   }
 }
 
 JsValuePtr GlobalJsObject::Setup(JsEnginePtr jsEngine, const AppInfo& appInfo,
     JsValuePtr obj)
 {
   obj->SetProperty("setTimeout", jsEngine->NewCallback(::SetTimeoutCallback));