Avoid defining the html_equal helper at the top level
Avoid defining the html_equal helper at the top level

Since we now have a Redcarpet::TestCase class, let's push any helper
here and avoid defining top level methods.

fukayatsu/redcarpet,fukayatsu/redcarpet,vmg/redcarpet,Hacker0x01/redcarpet,be9/redcarpet,kaneshin/redcarpet,be9/redcarpet,vmg/redcarpet,fukayatsu/redcarpet,emq/redcarpet,fukayatsu/redcarpet,kattybilly/redcarpet,kaneshin/redcarpet,liquorburn/redcarpet,gitcafe-dev/redcarpet,increments/greenmat,be9/redcarpet,increments/greenmat,liquorburn/redcarpet,emq/redcarpet,kaneshin/redcarpet,vmg/redcarpet,kattybilly/redcarpet,increments/greenmat,liquorburn/redcarpet,kattybilly/redcarpet,kaneshin/redcarpet,gitcafe-dev/redcarpet,liquorburn/redcarpet,gitcafe-dev/redcarpet,increments/greenmat,emq/redcarpet,emq/redcarpet,be9/redcarpet,vmg/redcarpet,Hacker0x01/redcarpet,Hacker0x01/redcarpet,Hacker0x01/redcarpet,kattybilly/redcarpet