remove pycon design img files

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
update backup script

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Merge branch 'cleanup_pycon_images'
git ignore virtualenv env/

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
force redirect to registration page entirely

Signed-off-by: Hiroshi Miura <miurahr@linux.com>