Optimized UX and code structure

+ Added automatic self-sign certificate sniffing
+ Moved all constant into def.go
+ Added auto restart on port change when proxy server is running
+ Optimized slow search geoIP resolver by introducing new cache mechanism
+ Updated default incoming port to HTTPS instead of HTTP

src/mod/dynamicproxy/dynamicproxy.go

@@ -291,7 +291,7 @@ func (router *Router) Restart() error {
 			return err
 		}
 
-		time.Sleep(300 * time.Millisecond)
+		time.Sleep(800 * time.Millisecond)
 		// Start the server
 		err = router.StartProxyService()
 		if err != nil {