Added function for shell-like pattern matching. Will be used formatching interface names in protocol-to-iface bindings.
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)
The library is now glued together from generic and OS-dependent partsby the `mergedirs' script. Few more IP address manipulation functionsand some fixes.