Version Bump v3.3.1: Pull #95 Use log instead of fmt for printing errors
Version Bump v3.3.1: Pull #95 Use log instead of fmt for printing errors

sendgrid/sendgrid-go,karmakaze/sendgrid-go,VividCortex/sendgrid-go,VividCortex/sendgrid-go,sendgrid/sendgrid-go,karmakaze/sendgrid-go