Update README.md
Update README.md
add java socket common client demo

Signed-off-by: scauwjh <scauwjh@gmail.com>
Merge branch 'master' of git@github.com:scauwjh/IM.git
refactor user map service

Signed-off-by: scauwjh <scauwjh@gmail.com>
for a debug print

Signed-off-by: scauwjh <scauwjh@gmail.com>
delete sessionCount varilable

Signed-off-by: scauwjh <scauwjh@gmail.com>
1.add some debug for server
2.add Client init flag
->Client.ifInit false or true

Signed-off-by: wjh <scauwjh@gmail.com>
1.add port to server notify(sender)
2.add try{}catch in loginservice
3.code optimization in Client: connect
4.change to overtime of some connection: details in Constant

Signed-off-by: wjh <scauwjh@gmail.com>
imclient-v1.2.0
1.delete init flag and add init method
2.others...

Signed-off-by: wjh <scauwjh@gmail.com>
1.delete mina heartbeat mechanism, run heartbeat in multi thread
2.add differect levels of debug print
3.change session login service: different ports are not related.

Signed-off-by: wjh <scauwjh@gmail.com>
v1.3.2

1.delete Client properties: for andorid path error
2.change messageHandler just for message
3.add asynchronous login interface
4.other optimizion

Signed-off-by: wjh <scauwjh@gmail.com>
1.update debug print
2.add return type: Constant.TYPE_RETURN

Signed-off-by: wjh <scauwjh@gmail.com>
1.add msg return service
2.update client demo
3.add identification key to protocol, for msg unique identification
4.change ClientUtil methods: return DataPacket and would not waite for sending message
5.

Signed-off-by: wjh <scauwjh@gmail.com>