Add mandrill
Add mailgun
Update readme
Add mandrill upload test
Remove unused settings
Remove unused module
Add semicolon
Add api/endpoint.json test
Add upload/multipart sendgrid options tests
Improve email provider post tests
Add sendgrid multipart attachments
Refactor upload/multipart options methods
Refactor array multipart upload
Fix options upload tests
Improve upload options tests
Update readme
Add google contacts pagination example
Add user agent header by default
Fix linkedin post test
Version bump