Release Name: 2.2.0

Notes:
Test::Unit 2.x - Improved version of Test::Unit bundled in
Ruby 1.8.x.

Ruby 1.9.x bundles minitest not Test::Unit. Test::Unit
bundled in Ruby 1.8.x had not been improved but unbundled
Test::Unit (Test::Unit 2.x) will be improved actively.


Changes:
=== 2.2.0 / 2011-02-14

* 22 enhancements
  * [#28808] accept String as delta for assert_in_delta.
    [Daniel Berger]
  * [test-unit-users-en:00035] make GC-able finished tests.
    [Daniel Berger]
  * use also COLUMNS environment variable to guess terminal width.
  * make delta for assert_in_delta optiona.
    [Nobuyoshi Nakada]
  * add assert_not_respond_to.
    [Nobuyoshi Nakada]
  * add assert_not_match. assert_no_match is deprecated.
    [Nobuyoshi Nakada]
  * add assert_not_in_delta.
    [Nobuyoshi Nakada]
  * add assert_in_epsilon.
    [Nobuyoshi Nakada]
  * add assert_not_in_epsilon.
    [Nobuyoshi Nakada]
  * add assert_include.
    [Nobuyoshi Nakada]
  * add assert_not_include.
    [Nobuyoshi Nakada]
  * add assert_empty.
    [Nobuyoshi Nakada]
  * add assert_not_empty.
    [Nobuyoshi Nakada]
  * notify require failed paths.
  * validate message value for assert.
  * show throughputs at the last.
  * support not ASCII compatible string diff.
  * support colorized diff on encoding different string.
  * normalize entry order of Hash for readable diff.
  * add --ignore-name option.
  * add --ignore-testcase option.
  * add assert_not_send.

* Thanks
  * Daniel Berger
  * Nobuyoshi Nakada