fixed node versions
Add useragent
version bump 1.1.1
expose & document smtpapi

closes #125
update request

closes #126
Merge pull request #127 from sendgrid/expose-smtpapi

expose & document smtpapi
Merge pull request #128 from sendgrid/update-request

update request
version bump 1.2.0
version bump 1.2.0