diff --git a/README.md b/README.md
index e025ca7..b5bd6f6 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,16 @@
 
 transWhat is a WhatsApp XMPP Gateway based on [Spectrum 2](http://www.spectrum.im) and [Yowsup 2](https://github.com/tgalal/yowsup).
 
+#### Branches
+
+ - [yowsup-1](http://github.com/stv0g/transwhat/tree/yowsup-1) My original version which is based on @tgalal first Yowsup version (**deprecated** and broken).
+ - [yowsup-2](http://github.com/stv0g/transwhat/tree/yowsup-2) Major rewrite from @moyamo for @tgalal's new Yowsup 2 (**recommended**).
+ - [develop](http://github.com/stv0g/transwhat/tree/develop) A develop branch with the latest fixes and improvements. This branch is based on `yowsup-2`.
+
+For production, please use the `yowsup-2` branch.
+
+Please file bugreports against the `develop` branch.
+
 ## [Installation](INSTALL.md)
 ## [Usage](USAGE.md)
 
diff --git a/Spectrum2/backend.py b/Spectrum2/backend.py
index 9638834..6d5f70f 100644
--- a/Spectrum2/backend.py
+++ b/Spectrum2/backend.py
@@ -6,6 +6,8 @@ import os
 import logging
 import google.protobuf
 
+import resource
+
 def WRAP(MESSAGE, TYPE):
 	wrap = protocol_pb2.WrapperMessage()
 	wrap.type = TYPE
@@ -621,7 +623,7 @@ class SpectrumBackend:
 		pass
 
 	def handleMemoryUsage(self):
-		return (0,0)
+		return (resource.getrusage(resource.RUSAGE_SELF).ru_maxrss, 0)
 
 	def handleExitRequest(self):
 		sys.exit(1)
diff --git a/bot.py b/bot.py
index 631d82a..2555fcb 100644
--- a/bot.py
+++ b/bot.py
@@ -45,7 +45,7 @@ class Bot():
 		args = message.strip().split(" ")
 		cmd = args.pop(0)
 
-		if cmd[0] == '\\':
+		if len(cmd) > 0 and cmd[0] == '\\':
 			try:
 				self.call(cmd[1:], args)
 			except KeyError:
diff --git a/contrib/spectrum@.service b/contrib/spectrum@.service
new file mode 100644
index 0000000..24f5806
--- /dev/null
+++ b/contrib/spectrum@.service
@@ -0,0 +1,11 @@
+[Unit]
+description=spectrum2 whatsapp
+After=network.target
+
+[Service]
+ExecStart=/usr/bin/spectrum2 --no-daemonize -j whatsapp.example.com --config /etc/spectrum2/transports/whatsapp.cfg
+Restart=always
+User=spectrum2
+
+[Install]
+WantedBy=multi-user.target
diff --git a/session.py b/session.py
index 21ac080..4963ff6 100644
--- a/session.py
+++ b/session.py
@@ -211,10 +211,10 @@ class Session(YowsupApp):
 		else:
 			self.onPresenceUnavailable(number)
 	def sendReadReceipts(self, buddy):
-		for _id, _from, participant in self.recvMsgIDs:
+		for _id, _from, participant, t in self.recvMsgIDs:
 			if _from.split('@')[0] == buddy:
-				self.sendReceipt(_id, _from, 'read', participant)
-				self.recvMsgIDs.remove((_id, _from, participant))
+				self.sendReceipt(_id, _from, 'read', participant, t)
+				self.recvMsgIDs.remove((_id, _from, participant, t))
 				self.logger.debug("Send read receipt to %s (ID: %s)", _from, _id)
 
 	# Called by superclass
@@ -291,10 +291,9 @@ class Session(YowsupApp):
 		#	]))
 		#)
 		buddy = _from.split('@')[0]
-		messageContent = body #utils.softToUni(body)
-                self.logger.debug('received TextMessage 2')
-		self.sendReceipt(_id, _from, None, participant)
-		self.recvMsgIDs.append((_id, _from, participant))
+		messageContent = utils.softToUni(body)
+		self.sendReceipt(_id, _from, None, participant, timestamp)
+		self.recvMsgIDs.append((_id, _from, participant, timestamp))
 		self.logger.info("Message received from %s to %s: %s (at ts=%s)",
 				buddy, self.legacyName, messageContent, timestamp)
 		if participant is not None: # Group message or broadcast
@@ -339,8 +338,8 @@ class Session(YowsupApp):
 		else:
 			self.sendMessageToXMPP(buddy, url, image.timestamp)
 			self.sendMessageToXMPP(buddy, image.caption, image.timestamp)
-		self.sendReceipt(image._id,	 image._from, None, image.participant)
-		self.recvMsgIDs.append((image._id, image._from, image.participant))
+		self.sendReceipt(image._id,	 image._from, None, image.participant, image.timestamp)
+		self.recvMsgIDs.append((image._id, image._from, image.participant, image.timestamp))
 
 
 	# Called by superclass
@@ -358,8 +357,8 @@ class Session(YowsupApp):
 				self.sendGroupMessageToXMPP(buddy, partname, message, audio.timestamp)
 		else:
 			self.sendMessageToXMPP(buddy, message, audio.timestamp)
-		self.sendReceipt(audio._id,	 audio._from, None, audio.participant)
-		self.recvMsgIDs.append((audio._id, audio._from, audio.participant))
+		self.sendReceipt(audio._id,	 audio._from, None, audio.participant, audio.timestamp)
+		self.recvMsgIDs.append((audio._id, audio._from, audio.participant, audio.timestamp))
 
 
 	# Called by superclass
@@ -378,8 +377,8 @@ class Session(YowsupApp):
 				self.sendGroupMessageToXMPP(buddy, partname, message, video.timestamp)
 		else:
 			self.sendMessageToXMPP(buddy, message, video.timestamp)
-		self.sendReceipt(video._id,	 video._from, None, video.participant)
-		self.recvMsgIDs.append((video._id, video._from, video.participant))
+		self.sendReceipt(video._id,	 video._from, None, video.participant, video.timestamp)
+		self.recvMsgIDs.append((video._id, video._from, video.participant, video.timestamp))
 
 
 	def onLocation(self, location):
@@ -409,8 +408,8 @@ class Session(YowsupApp):
 			if url is not None:
 				self.sendMessageToXMPP(buddy, url, location.timestamp)
 			self.sendMessageToXMPP(buddy, latlong, location.timestamp)
-		self.sendReceipt(location._id, location._from, None, location.participant)
-		self.recvMsgIDs.append((loaction._id, location._from, location.participant))
+		self.sendReceipt(location._id, location._from, None, location.participant, location.timestamp)
+		self.recvMsgIDs.append((location._id, location._from, location.participant, location.timestamp))
 
 
 
@@ -434,8 +433,8 @@ class Session(YowsupApp):
 			self.sendMessageToXMPP(buddy, message, timestamp)
 #		self.sendMessageToXMPP(buddy, card_data)
 		#self.transferFile(buddy, str(name), card_data)
-		self.sendReceipt(_id, _from, None, participant)
-		self.recvMsgIDs.append((_id, _from, participant))
+		self.sendReceipt(_id, _from, None, participant, timestamp)
+		self.recvMsgIDs.append((_id, _from, participant, timestamp))
 
 
 	def transferFile(self, buddy, name, data):
diff --git a/transwhat.py b/transwhat.py
index 07e36bf..4273ca5 100755
--- a/transwhat.py
+++ b/transwhat.py
@@ -43,6 +43,7 @@ from yowsup.stacks import YowStack
 # Arguments
 parser = argparse.ArgumentParser()
 parser.add_argument('--debug', action='store_true')
+parser.add_argument('--log', type=str)
 parser.add_argument('--host', type=str, required=True)
 parser.add_argument('--port', type=int, required=True)
 parser.add_argument('--service.backend_id', metavar="ID", type=int, required=True)
@@ -52,12 +53,15 @@ parser.add_argument('-j', type=str, required=True)
 args, unknown = parser.parse_known_args()
 
 YowConstants.PATH_STORAGE='/var/lib/spectrum2/' + args.j
-loggingfile = '/var/log/spectrum2/' + args.j + '/backends/backend.log'
+
+if args.log is None:
+	args.log = '/var/log/spectrum2/' + args.j + '/backends/backend.log'
+
 # Logging
-logging.basicConfig( \
-	filename=loggingfile,\
-	format = "%(asctime)-15s %(levelname)s %(name)s: %(message)s", \
-	level = logging.DEBUG if args.debug else logging.INFO \
+logging.basicConfig(
+	filename=args.log,
+	format = "%(asctime)-15s %(levelname)s %(name)s: %(message)s",
+	level = logging.DEBUG if args.debug else logging.INFO
 )
 
 # Handler
diff --git a/utils.py b/utils.py
index f6d120c..a55546b 100644
--- a/utils.py
+++ b/utils.py
@@ -50,4 +50,4 @@ def decodePassword(password):
 	return base64.b64decode(bytes(password.encode("utf-8")))
 
 def sha1hash(data):
-    return hashlib.sha1(data).hexdigest()
+	return hashlib.sha1(data).hexdigest()
diff --git a/whatsappbackend.py b/whatsappbackend.py
index 691dc73..93ea1fd 100644
--- a/whatsappbackend.py
+++ b/whatsappbackend.py
@@ -118,8 +118,8 @@ class WhatsAppBackend(SpectrumBackend):
 		self.sessions[user].requestVCard(buddy, ID)
 
 	def handleVCardUpdatedRequest(self, user, photo, nickname):
-		self.logger.debug("handleVCardUpdatedRequest(user=%s, nickname=%s)", user, nickname)
-		self.sessions[user].setProfilePicture(photo)
+		self.logger.debug("handleVCardUpdatedRequest(user=%s, nickname=%s) not implemented", user, nickname)
+		#self.sessions[user].setProfilePicture(photo)
 
 	def handleBuddyBlockToggled(self, user, buddy, blocked):
 		self.logger.debug("handleBuddyBlockedToggled(user=%s, buddy=%s, blocked=%s)", user, buddy, blocked)
diff --git a/yowsupwrapper.py b/yowsupwrapper.py
index 2649220..f726f62 100644
--- a/yowsupwrapper.py
+++ b/yowsupwrapper.py
@@ -124,7 +124,7 @@ class YowsupApp(object):
 		"""
 		self.stack.broadcastEvent(YowLayerEvent(YowNetworkLayer.EVENT_STATE_DISCONNECT))
 
-	def sendReceipt(self, _id, _from, read, participant):
+	def sendReceipt(self, _id, _from, read, participant, t):
 		"""
 		Send a receipt (delivered: double-tick, read: blue-ticks)
 
@@ -133,8 +133,10 @@ class YowsupApp(object):
 			- _from: jid of person who sent the message
 			- read: ('read' or None) None is just delivered, 'read' is read
 			- participant
+			- t: The time the original message was sent.
 		"""
-		receipt = OutgoingReceiptProtocolEntity(_id, _from, read, participant)
+		self.logger.debug(u'Sending receipt to whatsapp: %s', [_id, _from, read, participant, t])
+		receipt = OutgoingReceiptProtocolEntity(_id, _from, read, participant, t=t)
 		self.sendEntity(receipt)
 
 	def downloadMedia(self, url, onSuccess = None, onFailure = None):