INN 2.2.2: server_init coredumps

[Jonathan Kamens]

If a News reader client attempts to use the server_init provided in
libinn in INN 2.2.2, it'll coredump because the configuration file
hasn't been read yet but server_init assumes that it has been.  Since
the clientlib.c interface in libinn is supposed to be as drop-in
compatible as possible with the old, pre-inn clientlib.c, its
server_init should read the configuration file automatically if it
hasn't already been read.  News reader clients using server_init and
the other clientlib functions shouldn't have to call special INN
functions (like the one to read the config file) in addition to the
standard ones.

  jik