Add Diners and Dankort

Thanks to @Samox

Add Maestro

Thanks @LeahTen for the commit

Support MasterCard 2-series BINs

v0.9.8

Update version

Version update

v0.9.7

Version 0.9.7

Added mm/yy and friendly brand support

Thanks to @joshkel for his pull request, this release adds Card.mmyy and Card.friendly_brand.