This reverts commit 8cbf8254.

This doesn't provide a way to turn off the escaping, but alternative template engine authors
can figure out what their default should be by calling this.  Avoids a messy version + plugin check.

This reverts commit 29b28066.

This reverts commit 610e94c0.

Avoid warning spam by flipping to the new callbacks mechanism.  These callbacks are actually never called by rails itself, merely there for plugins

Fixes RSpec integration example groups, which mixes its Matchers
module into ActiveSupport::TestCase.
Signed-off-by: NMichael Koziarski <michael@koziarski.com>

Previously this example would always pass, even when cookies.delete was not called.

@request.cookies['foo'] = 'bar'
get :delete_cookie
assert_nil cookies['foo']
Signed-off-by: NMichael Koziarski <michael@koziarski.com>
[#2768 state:committed]

Added CDATA support to the XmlMini LibXML engine, adjusted whitespace handling to closer match that of the REXML engine, and added a LibXML engine test
Signed-off-by: NMichael Koziarski <michael@koziarski.com>

These rely on constant autoloads.

This reverts commit d39f397d.