Console:

- Add spans to /stats page to avoid summary info breaking mid-sentence, and to
  aid presentation
- Adjust /stats CSS so information isn't over-dense
- Set graph size for generated graphs on /stats to 600x200
- Fix netdb leaseset tables
  - Ensure we only iconify add to addressbook links and not b32 dests
- Individual icons for I2PSnark and I2P Plugins on /home
- Add div to upnpstatus on peers to comply with layout
- Fix various unclosed/erroneous tags