#440 - Added first name and last name to registration forms. Updated styles for address form. Added billing address toggle.
Removed input classes from address form.
Added translation.
Added phpstorm config folder in gitignore.
Added validation for first/last name. Updated registration scenarios.
Updated scenarios and reverted .gitignore.
Merge pull request #449 from phpfour/registration-form-enhancement

#440 - Added first name and last name to registration forms. Updated styles of address form.