v2.0.0

Enhancements

• Switch from using HTTPoison to using Tesla
• Switch from using Poison to Jason for JSON serialization
• SendGrid.Email is now responsible for configuring its own JSON serialization
• An API key can be set manually for any API call as a keyword option, bypassing
  the need for a global API key
• An API key can be set with the {:system, "ENV_VAR"} to use values at runtime
• Add dialyzer for validing typespecs
• Add support for dynamic template data
• Add struct for handling Contact Recipient encoding
• Working config added for testing
• Add support for multiple personalizations in a single sent Email request

Bug Fixes

• Typespecs are now correct

Breaking Changes

• SendGrid.Mailer has been renamed to SendGrid.Mail to better reflect the
  actual shape of SendGrid's API structure
• SendGrid.Contacts.Recipients.add now requires a recipient to be built with
  SendGrid.Contacts.Recipient.build/2
• SendGrid.Contacts.Lists.add returns {:ok, map()} instead of {:ok, integer()}.

v1.8.0

Enhancements

• Raise runtime error whenever API isn't configured whenever making an API call

Fixes

• custom headers are properly sent when V3 of the SendGrid API

v1.7.0

Enhancements

• Add add/1, all_recipients/3, and delete_recipient/2 to SendGrid.Contacts.Lists
• Remove compile warnings for Phoenix.View

v.1.6.0

Enhancements

• Relax dependency versions
• add put_phoenix_layout/2 in SendGrid.Email to render views in

Breaking Changes

• put_phoenix_template/3 now expects an atom for implicit template rendering

v1.5.0

Enhancements

• update docs
• upgrade to Elixir 1.4
• add support for Phoenix Views

v1.4.0

Enhancements

• update httpoison to 0.11.0 and poison to 3.0
• clean up compiler warnings when using Elixir 1.3

v1.3.0

Changes

• Enhancements
  • add add_custom_arg for custom arguments
  • remove raise when no API key is provided at compile-time

v1.2.0

Changes

• Enhancements
  • add add_attachment for attachments
  • bump :poison version to 2

v1.1.0

Changes

• Enhancements
  • add add_header to be sent with an email

v1.0.3

Changes

• Fixes
  • replace documentation using to put_to with add_to