Make referer() behave as expected.
Fix test
Backporting overwrite() from 3.0 to 2.6.
Update version number to 2.4.8
Merge branch '2.6' of github.com:cakephp/cakephp into 2.6-overwrite
Fix coding standards error.
Stricter string comparisons.
Merge pull request #3415 from dereuromark/master-strict

Stricter string comparisons.
More coding standard corrections.
Merge pull request #3416 from dereuromark/master-strict

More coding standard corrections.
Fix FormHelper::postLink() not working when SecurityComponent is enabled.

The action attribute value was not being included in the generated hash,
so postLink() forms never worked properly.

Fixes #3418
Update version number to 2.4.9
Removed incorrect usage of @deprecated phpDoc

@deprecated is flagging the function element as deprecated in all IDE's that support phpDOC tags. There is no phpDoc tag to deprecate a function parameter.
Merge pull request #3421 from thinkingmedia/patch-1

Removed incorrect usage of @deprecated phpDoc
Grammar fixes

@return will accept the `|` or operator to define multiple return types. Don't use the word `or`.
fixed case.
Merge pull request #3426 from thinkingmedia/patch-1

Grammar fixes
remove constructor return value.

Not sure why this was here, but constructors shouldn't return a value. Nothing in the docs says that a controller's implementation of appError should return a value either. So I figure this was a mistake.
Merge pull request #3427 from thinkingmedia/patch-2

remove constructor return value.
Fix travis builds.

Travis updated to phpunit 4 for PHP 5.3 and CakePHP needs phpunit 3.7.