Continued:

Continued:
- reset software, detection mode and nodeinfo URL to None when redirection is
  done to other domain
- yes, some people have moved their instance to a sub domain and now redirect
  their traffic to there
- still this had caused another instance under a wrong domain name to be
  registered
- this fix solves this, please run ./fba.py update_nodeinfo
- added config key recheck_nodeinfo