Fixed some whisper issues

whisper/whisper.go

@@ -229,11 +229,11 @@ func (self *Whisper) envelopes() (envelopes []*Envelope) {
 func (self *Whisper) postEvent(envelope *Envelope) {
 	for _, key := range self.keys {
 		if message, err := envelope.Open(key); err == nil || (err != nil && err == ecies.ErrInvalidPublicKey) {
-			// Create a custom filter?
 			self.filters.Notify(filter.Generic{
 				Str1: string(crypto.FromECDSA(key)), Str2: string(crypto.FromECDSAPub(message.Recover())),
 				Data: bytesToMap(envelope.Topics),
 			}, message)
+			break
 		} else {
 			wlogger.Infoln(err)
 		}