Should the library versions be bimped on the shared libraries?

With the plugin architecture - I suspect that we will have compatibility
problems on at least libkdb5...  The export lists between the old and
current library versions are very different....

The gssrpc library has changed - functions have gssrpc_.... prepended - 
so the libraries are definitly incompatible...


The krb5 library no longer has gmt_mktime, krb5_free_ets, krb5_free_uio,
krb5_init_ets, krb5_setenv, krb5_unsetenv....  The krb5_init_ets might
break really old code...

The k5crypto has lost krb5_random2key

libcomerr has lost add_to_error_table, free_error_table,
init_error_table, initialize_error_table_r... - but I think we are ok...


So - at least - we need a bump on libkdb5, libgssrpc... Maybe on
k5crypto and libcommerr....

Ezra