Ruby and Ruby on Rails merged documentations

Ruby Ruby on Rails Docs
2.1.1 4.1.0 Ruby v2.1.1, Ruby on Rails v4.1.0
2.1.1 4.0.4 Ruby v2.1.1, Ruby on Rails v4.0.4
2.1.1 3.2.17 Ruby v2.1.1, Ruby on Rails v3.2.17
2.1.1 3.1.12 Ruby v2.1.1, Ruby on Rails v3.1.12
2.1.1 3.0.20 Ruby v2.1.1, Ruby on Rails v3.0.20
2.0.0-p451 4.1.0 Ruby v2.0.0-p451, Ruby on Rails v4.1.0
2.0.0-p451 4.0.4 Ruby v2.0.0-p451, Ruby on Rails v4.0.4
2.0.0-p451 3.2.17 Ruby v2.0.0-p451, Ruby on Rails v3.2.17
2.0.0-p451 3.1.12 Ruby v2.0.0-p451, Ruby on Rails v3.1.12
2.0.0-p451 3.0.20 Ruby v2.0.0-p451, Ruby on Rails v3.0.20
1.9.3-p545 4.1.0 Ruby v1.9.3-p545, Ruby on Rails v4.1.0
1.9.3-p545 4.0.4 Ruby v1.9.3-p545, Ruby on Rails v4.0.4
1.9.3-p545 3.2.17 Ruby v1.9.3-p545, Ruby on Rails v3.2.17
1.9.3-p545 3.1.12 Ruby v1.9.3-p545, Ruby on Rails v3.1.12
1.9.3-p545 3.0.20 Ruby v1.9.3-p545, Ruby on Rails v3.0.20