Added credit card validation for Visa, Mastercard, American Express, Dinersclub and Discover
added docblock and readme docs for using the new filter
oops… (newline)
oops… (newline / whitespace)
fixed a typo
fixed indentation and php5.3 array syntax
Merge branch 'feature/credit-card-validation' of https://github.com/willishq/valitron into feature/credit-card-validation
and again with the array thing making valid for php5.3
discover -y
Merge pull request #44 from willishq/feature/credit-card-validation

Added credit card validation for Visa, Mastercard, American Express, Din...