Version Bump v3.0.1: Added default Accept header

Merge branch 'v3release'

Version bump 2.2.2

Version bump v2.2.1

Version v2.2.0 release

Stable v1.2.0

Version bump 1.1.0

Version bump 1.0.1

Merge pull request sendgrid#29 from sendgrid/attachments

Attachments

Fix misnamed task