Fixed bug - If client send a bad packet to server, server maybe crash.

Signed-off-by: yushijinhun <yushijinhun@gmail.com>
Determine the version number

Signed-off-by: yushijinhun <yushijinhun@gmail.com>
Fixed bug - Even if use shovel to dig wet dirt, there's no acceleration effect.

Signed-off-by: yushijinhun <yushijinhun@gmail.com>
Fixed bug - All the machines 's front block coordinate calculation is incorrect.

Signed-off-by: yushijinhun <yushijinhun@gmail.com>
Merge branch 'release' into develop