sendgrid_integration 7.x-1.0-alpha3

Alpha 3 Release is a major upgrade and almost complete re-write of the module. If you are currently running Alpha 2, please read all the documentation and ask questions in the issue queue. There are a lot of new dependencies to run Alpha 3, but there are a lot of enhancements. Below is a listing of items that document changes and upgrades.

• #2604744: Create Alpha 3 release
• #2604750: Unused variable $queue in SendGridMailSystem::mail(array $message)
• #2608650: Installation causes deletion of existing module-provided MailSystemInterface classes
• #2632276: Add function to query stats by category