#1 wrong variable type cause compile error

[Siavash]

On file "src/helper/natblaster_helper.c" at line 41 an invalid type has been defined for "peer_con_size" variable. which causes a compile error.
Simply with changing the type of "peer_con_size" from "int" to "socklen_t" you can bypass the error.

Also, you can replace the attached file with the existing "natblaster_helper.c".

[Siavash]

Replace "src/helper/natblaster_helper.c" with this file