v3 of pull request based on additional feedback from @jeremy

Relaxed jbuilder dependency and bumped version number

Newer version contains some generator bugfixes

Fix ActiveRecord locking column defaults not getting persisted

Raise an ArgumentError when a clashing named route is defined

ActiveSupport::MessageVerifier: Updated docs due to removal of serializer accessor

Use jquery-rails from github

completes https://github.com/rails/rails/commit/6f3f0f86332004fcee5c2f05d52bbff08c22f980

Fix update_version_rb task

Fix some typos

Ignore pkg folders

Add #to_s method to VERSION modules

Closes #9184

Previously regex did not strip quotation marks where hstore values were multi-line strings.

Custom index type support with :using.

Closes #9451

activemodel/CHANGELOG typo and change in test description

Unscoped works with other named scope even without block form

Make it obvious that using unscoped with another scope
without the block works

Update comment to reflect that unscoped works with named scope
even when named scope is using without block form

Refactoring validate_missing_parameters to validate_required_parameters.

Don't use hash fragment for travis link

Fixed typos in activerecord CHANGELOG