socket protocol

Invalid date

- Fixed send and receive bytes greater than 0x79 in HEX mode
- optimized HEX bytes conversion


in the previous release

- Solved some connection bugfix in android 4.0 platform
- Optimized scroll in edit text
- Inserted IP address of sender in server screen
- Moved message info bar at the top of screen
- Modified messages for socket not connected
- Fix some IP address exception in client connection
- Full Android 4.0.3 compatibility