refactor validation error messages
Merge pull request #11 from yaplas/refactor/validations

refactor validation error messages
change module.exports by exports
Merge pull request #12 from yaplas/refactor/validations

change module.exports by exports
ignores
ignores
Merge pull request #13 from jonymusky/change/git-ignore

Change/git ignore
adding circle-ci config
Merge pull request #14 from benjamine/master

adding circle-ci config
add of states
Merge pull request #15 from jonymusky/add/states

add of states
add payment method validations
update version
replace getCardBrand by creditCard.getIssuer
reject expiration month and year if they are not numbers
Merge pull request #16 from yaplas/refactor/validations

Refactor/validations
don't validate empty fields
Merge pull request #17 from benjamine/master

don't validate empty fields
0.1.2
test empty non required fields