Add release date of Rails 3.2.9 to documentation

Conflicts:
	actionpack/CHANGELOG.md
	activerecord/CHANGELOG.md
	activesupport/CHANGELOG.md
updating the changelog for the CVE
updating the changelogs
updating changelog
CVE-2012-5664 options hashes should only be extracted if there are extra parameters
Merge branch '3-2-sec' into 3-2-secmerge

* 3-2-sec:
  CVE-2012-5664 options hashes should only be extracted if there are extra parameters
  updating changelog
  updating the changelogs
  updating the changelog for the CVE
  Add release date of Rails 3.2.9 to documentation

Conflicts:
	actionmailer/CHANGELOG.md
	actionpack/CHANGELOG.md
	activemodel/CHANGELOG.md
	activerecord/CHANGELOG.md
	activeresource/CHANGELOG.md
	activesupport/CHANGELOG.md
	railties/CHANGELOG.md
bumping version to 3.2.10
fix block.arity raise nil error when not given a block to "content_tag_for"
Merge pull request #8640 from jasl/3-2-stable

fix block.arity will raise nil error
Merge branch '3-2-stable' into 3-2-secmerge

* 3-2-stable:
  fix block.arity raise nil error when not given a block to "content_tag_for"
  removes the Ajax on Rails early draft
  Revert "Merge pull request #8665 from senny/8661_should_not_append_charset_if_already_present"
  backport #8662, charset should not be appended for `head` responses
  Revert "Fix `validates_presence_of` with `:allow_nil` or `:allow_blank` options."
  Fix `validates_presence_of` with `:allow_nil` or `:allow_blank` options.
  backport #8616, quote column names in generated fixture files
Improve CHANGELOG message [ci skip]
Add release date of 3.2.10

Fix format and wrong changelog entry
Backport #8701, do not append a second slash with `trailing_slash: true`
Merge pull request #8703 from senny/backport_8700

Backport #8701, do not append a second slash with `trailing_slash: true`

Closes #8700
Use Ruby 1.8 syntax
Merge tag 'v3.2.10' into 3-2-stable

Latest released tag was not fully merged into the stable branch (missed version bumping)
Merge pull request #8719 from pcasaretto/fix-actionview-doc-typo

Fix typo on form_tag_helper.rb [ci skip]
Merge pull request #8716 from miguelff/3-2-stable

Merged latest released tag (v3.2.10) into the stable branch (3-2-stable)
update directory tree in the generated README

[ci skip]
Merge pull request #8733 from amatsuda/rails32_readme_dir_tree

update directory tree in the generated README in Rails 3.2

[ci skip]