Merge pull request #9 from dujeonglee/cwnd

Cwnd

Minor modification

Code formatting

Code formatting
1. While loop
while (condition);
->
do
{

}while(condition)

2. Lambda
[](){
   body
}
->
[]{}->return type{
   body
}

Disconnection bug fix

Update tx.h

Support IPv6

Decoding loop unroll

Terminate file name with 0

Decoding bug is fixed

Remove -pg option