Add Rakefile to plugin generator.  Let test_plugins rake task look deeper into plugins' test dirs.  Make plugin test cases flunk by default.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2790 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

Added test_plugins task: Run the plugin tests in vendor/plugins/**/test (or specify with PLUGIN=name) [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2788 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2570 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

Support using different database adapters for development and test with ActiveRecord::Base.schema_format = :ruby

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2549 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

Moved all the shared tasks from Rakefile into Rails, so that the Rakefile is empty and doesn't require updating. Added Rails::Initializer and Rails::Configuration to abstract all of the common setup out of config/environment.rb (uses config/boot.rb to bootstrap the initializer and paths)

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2115 5ecf4fe2-1ee6-0310-87b1-e25e094e27de