RFC 3986[1] allows sub-delim characters in path segments unencoded,
however Rack::File requires them to be encoded so we use URI's
unescape method to leave them alone and then escape them again.

Also since the path gets passed to Dir[] we need to escape any glob
characters in the path.

[1]: http://www.ietf.org/rfc/rfc3986.txt

escape static file path to prevent double unescaping

Connection pools are 1:1 with pids.

This patch adds ability to set custom console if you want to use
something other than IRB. Previously the hack that people used
was:

    silence_warnings do
      require 'pry'
      IRB = Pry
    end

which is not the best way to customize things.

move id_before_type_cast to PrimaryKey module

Autoload various constants effectively in abstract connection adapter.

ActionDispatch: add missing test for callbacks

Revert "No need to pass options which is never used"

Options is needed for some Rails extensions to determine when
referential integrity should be disabled

This reverts commit bcb466c5.

Fixes #5052

Fix sanitize_for_mass_assigment when role is nil

There is an example in Rails documentation that suggests implementing
assign_attributes method for ActiveModel interface, that by default
sends option role with nil. Since mass_assignment_authorizer never
is called without args, we can move the default value internally.

Fix AM format_paragraph helper method if a first word is long

Cosmetic fixes in block_format AM helper method + test

This fixes undef `to_str' for Rack::Chunked::Body when using
caches_action + streaming on an action

Closes #5027

In Ubuntu Chrome, in the last lines of code blocks, the underscore isn't
visible. Increasing the line height slightly seems to fix this. This
problem doesn't exist in Firefox even on Ubuntu. Too lazy to test in
any other OS-browser combo :)

"Or" was not meaningful anymore, per dad7fdc5

Rename field_changed? to _field_changed? so that users can create a field named field

Always reenable _dump task in AR databases rake. Closes #5030

sync __run_callbacks with ruby-trunk

https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/34580
In this revision behavior of respond_to? had changed: now to ask about
protected method one should pass second argument `true`

This allows the internal :_dump task to be called as many times as
required. For instance, `rake db:migrate:redo` calls two tasks that
internally call :_dump, and without reenabling it to be reinvoked,
the database was left in incorrect state.

Remove not used button translation from av locale

Allow collection helpers with block to access current object in the collection