fix ArgumentError being raised in case of invalid byte sequences
Remove ActionController::TestCase#rescue_action_in_public!

This method has no effect since exception handling was
moved to middlewares and ActionController tests do not
use any middlewares.
Check for existence of exactly the called `fixture_path=` method
Merge pull request #5338 from mreinsch/3-2-static_invalid_byte_sequence

3 2 static invalid byte sequence
Merge pull request #5437 from kennyj/fix_5430

Fix GH #5430. A Payload name for schema_search_path should be SCHEMA.
Merge pull request #5456 from brianmario/redirect-sanitization

Strip null bytes from Location header
Merge pull request #5457 from brianmario/typo-fix

Fix typo in redirect test
Fix #5440 - multiple render_to_string breaks partials formats

This fixes situation where rendering template to string
sets `rendered_format` to the format rendered there.
This is ok to have consistent formats rendered in partials,
but it breaks on next renders if format is explicitly set
or on last render where default format does not necessarily
need to be the format of first rendered template.
Add missing test for #5308
Merge pull request #5480 from drogus/rendering-issues

Fix for #5440
Ensure load hooks can be called more than once with different contexts.
Rubyracer does not work on ruby, so add it to Gemfile with :ruby platform only
Fix GH #5435. db:structure:dump should be re-enable.
Merge pull request #5493 from kennyj/fix_5435-32

[3-2-stable] Fix GH #5435. db:structure:dump should be re-enable.
Build fix for app_generator_test.rb
Merge pull request #5498 from arunagw/build_fix_app_generator_test_3-2-stable

Build fix app generator test 3 2 stable
Increase minimum version of mail.

  Second security vulnerability found in mail file delivery method
  patched in version 2.4.4.
Build fix for ruby1.8.7-358
Merge pull request #5505 from arunagw/build_fix_1.8.7-3-2-stable

Build fix 1.8.7 3 2 stable
We dont need to merge in the parameters as thats all being reset by the rack headers (and its causing problems for Strong Parameters attempt of wrapping request.parameters because it will change in testing)