added failing tests for has_many, has_one and belongs_to associations wi...

added failing tests for has_many, has_one and belongs_to associations with strict mass assignment sanitizer, fixed build_record to not merge creation_attributes, removed failing nested attributes tests (that feature was broken anyway) #4051

raises an ArgumentError on TemplateRenderer#determine_template

remove Enumerable#each_with_object from core_ext as it is present in ruby 1.9

Changed the old logger to new active support logger

remove deprecated set and original methods for table_name, primary_key, etc

Action pack logger methods changed to active supoort Logger methods

remove deprecated underscore versions of attribute methods

We don't need a special html_escape for 1.8 anymore

Add your own test tasks as dependencies on the `test:run` task instead of `test` itself.

  namespace :test do
    task run: 'test:acceptance'

    Rails::SubTestTask.new acceptance: 'test:prepare' do |t|
      t.libs << 'test'
      t.pattern = 'test/acceptance/**/*_test.rb'
    end
  end

This makes it easier to add your own tests to the default suite:

  task test: 'test:acceptance'

  namespace :test do
    Rails::SubTestTask.new acceptance: 'test:prepare' do |t|
      t.libs << 'test'
      t.pattern = 'test/acceptance/**/*_test.rb'
    end
  end

Now `rake` runs unit, functional, integration, and acceptance tests.

warning removed 

remove requires of core_ext/array/random_access that no longer exists

remove Kernel#singleton_class from core_ext as it is present in ruby 1.9

remove Array#sample from core_ext

remove check for string from request body setter

removed  deprecated loggers

rails version order in railties changelog