I reproduced the issue with 'configure_edison --latest-version' and 'configure_edison --upgrade' not working after upgrading to the latest released firmware image and submitted a bug report with the correct developers. Here are the results of the test ran:
root@edison:~# cat /etc/version
edison-rel1-maint-weekly_build_16_2014-10-14_14-56-19
root@edison:~# configure_edison --latest-version
Could not retrieve latest firmware version information. Quitting.
none
root@edison:~# configure_edison --upgrade
Could not retrieve latest firmware version information.
Could not upgrade device firmware. Quitting.
Ruscoff, thanks for reporting the issue.