Version 1.2.0

Version 1.1.1

Version 1.1.0.pre.3

Version 1.1.0.pre.2

Bump irb version to 1.1.0.pre.1.

  Becausee the current irb support reline and have many of changes.

Bump version to 1.0.0. Fixes ruby#4

Fix syntax on Binding.irb documentation [ci skip]

There was incorrect backticks (`) instead of plus signs to denote method
references, and a typo.

[Fix GH-2016]

From: Olivier Lacan <hi@olivierlacan.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65729 b2dd03c8-39d4-4d8f-98ff-823fe69b080e