PHPUnit can be included as a phar file.

No need to install phpunit in order to run unit tests.  Simply place
'phpunit.phar' in the vendors folder.
remove space
Merge pull request #5248 from larryb82/phpunit_as_phar

PHPUnit can be included as a phar file.
Make the version option function as intended.

The version option is documented but does not work. While this 'breaks'
behavior, it also fixes what I think is a more important issue.

Refs #5234
Merge pull request #5253 from cakephp/issue-5234

Make the version option function as intended.
check ob_get_level() before ob_flush()
Merge pull request #5261 from sadapon2008/2.x-response-ob_flush

an unnecessary E_NOTICE caused by CakeResponse::download()
Merge branch 'master' of https://github.com/cakephp/cakephp

* 'master' of https://github.com/cakephp/cakephp:
  check ob_get_level() before ob_flush()
  Make the version option function as intended.
  remove space
  PHPUnit can be included as a phar file.