ESDEV-2110  Make PayPal standalone compatible with PSR

Updated phpdocs of methods; added New line at the end of file;
ESDEV-2110  Make PayPal standalone compatible with PSR

Updated phpdocs of methods; added New line at the end of file;
ESDEV-2110  Make PayPal standalone compatible with PSR

Updated phpdocs of methods; added New line at the end of file; Changed sql quote place