add setting for rails 4.0.0
exclude: ruby 1.9.2 & rails 4.0.0

[because]
Installing activesupport (4.0.0)
Gem::InstallError: activesupport requires Ruby version >= 1.9.3.
An error occurred while installing activesupport (4.0.0), and Bundler cannot
can run test
Upgrade AR and AS
2.0.0.beta
Update README
Remove deprecation warnings
Follow ConnectionHandler changes.
Follow ActiveRecord::Persistence changes.
Fix when connection adapters returns ActiveRecord::Result
Add before blocks
Remove Rails 3.x settings on travis
Update gemspec
Update gemspec
Remove rails3 support
Use range_bsearch on default turntable.yml
Updated moneky patches
Update QueryCache middleware patch
Fix database tasks
Not to load DatabaseTasks implicitly