Log Message:
Update to version 0.9.15.

- added dependency on p5-File-MMagic if perl support enabled (for MMSG
  support)

Changes:

- Fixed race condition between silc_client_init and my_silc_scheduler.
- Take reference of the socket in the parser context, as it's possible
  to have the parsers in queue after the socket is disconnected and this
  may cause crash.
- Check that packet queue purging was successful.
- Optimized the socket referencing in packet routines.
- Resolve the IP for file transfer listener from the connection socket.

- Added LISTKEYS command which can be used to list server and client
  public keys from the ~./silc directory.  See /HELP LISTKEYS.
- Improved the MMSG command.  It now supports the target so it can be used
  to send private messages too without opening a windows.  It also
  detects the MIME type now automatically.  Support for digitally signing
  the messages was also added.  See /HELP MMSG, the help file is there
  now. :)  Replace the old silc-mime.pl script with the new one to take
  advantage of all new features.
- Added /MMSG command help file.