helpers. Also don't leak the last line worth of memory from the keyserver
response.
* main.h, misc.c (deprecated_warning): New function to warn about
deprecated options and commands.
* g10.c (main), keyserver-internal.h, keyserver.c (parse_keyserver_uri):
Use new deprecated function to warn about honor-http-proxy,
auto-key-retrieve, and x-broken-hkp.
that has been revoked by designated revoker, but the designated revoker is
not present to verify the revocation (whew!). This applies to all ways to
get a key into the system: --import --recv-keys, and --search-keys. If
auto-key-retrieve is set, try and retrieve the revocation key.
Also, auto-key-retrieve is now a keyserver-option.
