New component-mismatches for source universe -> main

[process-component-mismatches-diff]

The following universe packages have new reverse dependencies
in main or got seeded. They need to get a MainInclusionReport and be
promoted, or the reverse dependencies in main need to be dropped:

  o checkbox-support: python3-checkbox-support
  o libnftnl: libnftnl-dev libnftnl11
  o python-guacamole: python-guacamole-doc python3-guacamole
  o ryu: python-ryu-doc python3-ryu
  o xlsxwriter: python3-xlsxwriter

Please see http://people.canonical.com/~ubuntu-archive/component-mismatches.txt
for the full report.

Please contact https://launchpad.net/~ubuntu-archive for problems with this
notification.