Update card.rb

I have checked the doc for FileUtils & rm_rf method.  This is probably correct assigment for the :secure.

This error came up when I tried to update to the latest wagn.

Take care Ethan.
Merge pull request #104 from tukanos/master

Error that prevents update from 11.1 to 11.3 wagn
merged in fixes pulled directly to master
Merge branch 'develop'
base_url should not default to http, but rather default to the protocol of the request being processed. Additionally, url matching should optionally match https in wagn_url
Merge pull request #113 from nilobject/master

SSL only installations redirect to non-SSL for special URLs like *previous
Merge remote-tracking branch 'wagn/master' into develop