Fix for SearchQueryMultipleFilters test
Allow omitting billinginfo
Merge branch 'feature/misc' into feature/validations
Merge branch 'feature/validations' of https://github.com/allmyles/allmyles-sdk-php into feature/validations
Passenger validation, fixed validation test
Merge branch 'feature/validations' of https://github.com/allmyles/allmyles-sdk-php into feature/validations