Fixed tests for new_plugin_generator.

If passed "foo", a gem "foo-rails" is added to the Gemfile
and "foo" and "foo_ujs" are required in the application
JavaScript manifest.

Added the mysql schema test to mysql2 adapter

Fixes typos in params wrapper test

Select_tag should have the same API of select from form_builder

raise an error if the old router draw method is used

raise an error if the old router draw method is used, along with a message advising them to either upgrade their routes or add rails_legacy_mapper to their Gemfile

Google Chrome sometimes incorrectly identifies the rescues template charset

Rescues template HTML5 doctype and the utf8 charset meta tag, and better font choices for Mac users.

Add static_cache_control as configuration option and set a default for test. Should improve performance in acceptance tests.

Fixing failing test case on 1.8.7 & bump Rack version

I have to keep in mind that 1.8.7 does *not* preserve the hash order.

Guys, let's move to use 1.9.2 in production!

Rack 1.3.0 was released a while ago, which break the hard dependency we set in Action Pack. This dependency bump won't be the issue, as we always depends on edge Rack. Also, we was waiting for Rack 1.3.x release before we can release Rails 3.1 beta anyway.