Wait for Kick to finish

Fix #78

mediacache.go

@@ -9,7 +9,6 @@ import (
 func (cc *contentConn) fromCache(filename, base64SHA1 string) bool {
 	os.Mkdir(Path("cache"), 0777)
 
-
 	hash, err := b64.DecodeString(base64SHA1)
 	if err != nil {
 		cc.log("<-", base64SHA1, ": ", err)

run.go

@@ -79,6 +79,7 @@ func runFunc() {
 		for cc := range clts {
 			go func(cc *ClientConn) {
 				cc.Kick("Proxy shutting down.")
+				<-cc.Closed()
 				wg.Done()
 			}(cc)
 		}