Bugfix: PluginAction spam causing errors (#541)

* Use session's state instead of existence to determine action

* Retain host/port text

* Use bindings instead of text/ref tunneling

Co-authored-by: Lucien Greathouse <me@lpghatguy.com>

plugin/src/ServeSession.lua

@@ -113,6 +113,10 @@ function ServeSession:__fmtDebug(output)
 	output:write("}")
 end
 
+function ServeSession:getStatus()
+	return self.__status
+end
+
 function ServeSession:onStatusChanged(callback)
 	self.__statusChangedCallback = callback
 end