fix invalid html
Merge pull request #205 from sumobi/master

fix invalid html
add link to [affiliate_conversion_script] doc

takes care of https://github.com/affiliatewp/AffiliateWP/issues/211
Merge pull request #213 from sdavis2702/master

add link to [affiliate_conversion_script] doc
Add Korean Won currency
Merge pull request #215 from sumobi/master

Add Korean Won currency
allow public access to add_error function
Merge pull request #219 from sumobi/master

allow public access to add_error function