Disable AES192CBC and AES256CBC if unlimited cryptography is missing

If the JVM is missing the unlimited cryptography extension, we are
unable to use the AES-192 and AES-256 key sizes.  Don't install them
in the server, as the server can't support them if a client requests
it.  Instead we log a warning to the server log, so the admin can
troubleshoot the problem if they really require AES-192 or AES-256
for their organization's Gerrit installation.

Signed-off-by: Shawn O. Pearce <sop@google.com>
1 file changed