fix Helpers::DateHelper with :use_hidden - hide separators
fix inflector bug where -ice gets pluralized into -ouse

This should happen for mouse or louse, but not slice or pumice.
Added a generator option to remove the public/index.html file when generating a new Rails application

The option is:
-i, [--skip-index-html]        # Skip public/index.html file
Correcting some confusion. Pago Pago is part of American Samoa, not Samoa. Further, Samoa and Tokelau jumped across the IDL from Dec 29 to Dec 31, 2011 switching from UTC-11 to UTC+13. American Samoa did not make the change and remains at UTC-11. Pacific/Fakaofo and Pacific/Apia are in TZInfo and documentation about the dateline change is in austalasia at IANA.
fix the Flash middleware loading the session on every request (very dangerous especially with Rack::Cache), it should only be loaded when the flash method is called
Support cookie jar options for all cookie stores
Remove unused ivars left from close checks

These ivars were missed in d142572567 when close checks were removed
Observer: simplify tests
Build fix for observed_classes

introduced here
bad44e4f8f690039bd0db92ac25f10af536c6e71
Add note about using 303 See Other for XHR requests other than GET/POST

IE since version 6 and recently Chrome and Firefox have started following
302 redirects from XHR requests other than GET/POST using the original request
method. This can lead to DELETE requests being redirected amongst other things.

Although it doesn't directly affect the Rails framework since it doesn't return
a 302 redirect to any non-GET/POST request a note has been added to raise
awareness of the issue. Some references:

Original article from @technoweenie:
http://techno-weenie.net/2011/8/19/ie9-deletes-stuff/

Hacker News discussion of the article:
http://news.ycombinator.com/item?id=2903493

WebKit bug report:
https://bugs.webkit.org/show_bug.cgi?id=46183

Firefox bug report and changeset:
https://bugzilla.mozilla.org/show_bug.cgi?id=598304
https://hg.mozilla.org/mozilla-central/rev/9525d7e2d20d

Chrome bug report:
http://code.google.com/p/chromium/issues/detail?id=56373

HTTPbis bug report and changeset:
http://trac.tools.ietf.org/wg/httpbis/trac/ticket/160
http://trac.tools.ietf.org/wg/httpbis/trac/changeset/1428

Roy T. Fielding's history of the issue:
http://ftp.ics.uci.edu/pub/ietf/http/hypermail/1997q3/0611.html

Automated browser tests for the issue:
http://www.mnot.net/javascript/xmlhttprequest/

Fixes #4144
wrap translate defaults to use translate helper features, closes #1102
Merge pull request #6032 from lest/patch-2

wrap translate defaults to use translate helper features
Merge pull request #6076 from arunagw/build_fix_observed_classes

Build fix for observed_classes
allow send_file/send_data to skip disposition header, closes #2973
Merge pull request #5177 from cap10morgan/fix-gh-issue-4374

fix inflector bug where -ice gets singularized into -ouse
no need to dup options in send_data

options aren't modified inside send_file_headers!
Merge pull request #6072 from marcandre/observer_simplify_test

Observer: simplify tests
Merge pull request #6034 from willbryant/flash_must_not_load_session_on_every_request_master

Fix the Flash middleware loading the session on every request 
Failing test for #6034
Update activesupport/CHANGELOG.md