Added function for shell-like pattern matching. Will be used formatching interface names in protocol-to-iface bindings.
Implemented snprintf and similar functions. It took a lot of thinking,but the modifications were relatively simple and straightforward.
Added local version of sprintf (bsprintf and bvsprintf) offering few newformat strings:
%I IP address %#I IP address in hexadecimal %1I IP address padded to full length %m strerror(errno)