Database adapters use a statement pool for limiting the number of open
prepared statments on the database.  The limit defaults to 1000, but can
be adjusted in your database config by changing 'statement_limit'.

add has_key? to ActiveModel::Errors

Fix double slash at start of paths when mounting an engine at the root.

config.action_controller.perform_caching isn't used anymore in asset pipeline

config.action_controller.perform_caching isn't used anymore in assets pipeline, instead we are using config.assets.digest now

Nested through associations: preloads from the default scope of a through model should not be included in the association scope. (We're already excluding includes.) Fixes #2834.

Avoids double slash at start of paths when mounting an engine at the root.

Ensure we are not comparing a string with a symbol in HasManyAssociation#inverse_updates_counter_cache?. Fixes #2755, where a counter cache could be decremented twice as far as it was supposed to be.

Disable active record marshalling tests on Ruby 1.8.7 on Travis CI, as they have been failing intermittently for a long while due to what appears to be a Ruby bug. If anyone has the skills/expertise/time to debug this, please speak to the Travis guys.

#first doesn't take an order in this test

No need to use a begin block there

Uglifier bump

Last orders the records by id

Fix bad options order in AR::Migration::CommandRecorder#invert_rename_index

Remove unused config variable from test.rb template

Make sure that result from content_tag_for with collection is html_safe

current_page? returns false for non-GET requests

Never return stored content from content_for when a block is given

Thank you @spastorino for catching the empty test in b84cee08, as I totally forgot that I still have to make it html_safe.

Use LIMIT SQL word in first - Closes #2783

Sort here to make sure the order is ok.

remove misleading line on 500 error page. #2648

Silence unitialized instance variable warnings

Add entry about Asset behaviour fix to ActionPack ChangeLog