Tunnels: Cleanup, catch more cases of zero-hop configuration
ClientAppConfig: Start i2ptunnel sooner
  Since BuildRequestor won't use a zero-hop exploratory as a paired tunnel
  for client builds, it's now safe to start client tunnels
  before the expl. tunnels are ready. This will save up to 90 seconds.

- SSU: Reduce ack delay
- Streaming: Reduce min RTO and flusher delay
- Tunnels: Reduce GW batching time

- Configure browser with routerconsole.browser (ticket #1159)
- Convert to ClientApp interface

- Rewrite to read and merge multiple files
- Include in update, use version in base dir too
- Increase limits
- Bug fixes

I2CP: Use configured leaseset keys if available

- cowpuncher is moving to rows.io
- (temporarily) disabling 193.150.* due to downtime
- removing unnecessary certs

Translations updated also, but may need some further fixup.

torsocks, so let's use torsocks directly

Could be re-enabled when/if problems are fixed.

         Change default to RSA 4096
SigUtil: Add conversion methods for Java keys with unknown types

The webpack* and cloudflare* certificates are for ssl.webpack.de and
cowpuncher.drollette.com, respectively.  I'm removing the smartcom.org
certificate because it's unused.