Fixed spelling errors in EDD_Roles
Simplified edd_sanitize_price_save(). #1042
Corrected behavior of edd_prices_show_tax_on_checkout() and edd_prices_include_tax(). #1042
Fixed issues with edd_sanitize_amount(). #1042
Tweaked text() field. #570
Added 1.5.2 changelog and updated version numbers
Merge branch 'master' of https://github.com/pippinsplugins/Easy-Digital-Downloads