Release 3.0.4 - Support for Sequel ORM

Merge pull request #107 from omniauth/support-sequel-orm

Prepare release 3.0.4

v2.0.0

Note: The only potential breaking change is the removal of MongoMapper integration.

Added

• CHANGELOG to maintain a history of changes.
• Include mongoid-rspec gem.

Changed

• Fix failing Specs
• Update Spec syntax to RSpec 3
• Fix deprecation Warnings
• Updated mongoid_spec.rb to leverage mongoid-rspec features.
• Fix security warning about missing secret in session cookie.
• Dependency version limits so that the most up-to-date gem dependencies are used. (rspec 3+, mongo 2+, mongoid 7+, rake 13+, rack 2+, json 2+)
• Updated copyright information.
• Updated MongoMapper section of README to reflect its discontinued support.

Removed

• Gemfile.lock file
• MongoMapper support; unable to satisfy dependencies of both MongoMapper and Mongoig now that MongoMapper is no longer actively maintained.