rspec-2.3.0 is released

rspec-2.3.0 is released (including rspec, rspec-core, rspec-mocks, rspec-expecations and rspec-rails).

### rspec-core-2.3.0 / 2010-12-12

[full changelog](http://github.com/rspec/rspec-core/compare/v2.2.1...v2.3.0)

* Enhancements   * tell autotest to use "rspec2" if it sees a .rspec file in the project's     root directory     * replaces the need for ./autotest/discover.rb, which will not work with       all versions of ZenTest and/or autotest   * config.expect_with     * :rspec # => rspec/expectations     * :stdlib # => test/unit/assertions     * :rspec, :stdlib # => both

* Bug fixes   * fix dev Gemfile to work on non-mac-os machines (Lake Denman)   * ensure explicit subject is only eval'd once (Laszlo Bacsi)

### rspec-expectations-2.3.0 / 2010-12-12

[full changelog](http://github.com/rspec/rspec-expectations/compare/v2.2.1...v2.3.0)

* Enhancements   * diff strings when include matcher fails (Mike Sassak)

### rspec-mocks-2.3.0 / 2010-12-12

[full changelog](http://github.com/rspec/rspec-mocks/compare/v2.2.1...v2.3.0)

* Bug fixes   * Fix our Marshal extension so that it does not interfere with objects that     have their own @mock_proxy instance variable. (Myron Marston)

### rspec-rails-2.3.0 / 2010-12-12

[full changelog](http://github.com/rspec/rspec-rails/compare/v2.2.1...v2.3.0)

* Changes   * Generator no longer generates autotest/autodiscover.rb, as it is no longer     needed (as of rspec-core-2.3.0)