Prepare for 2.2.4

git-svn-id: https://svn.php.net/repository/pecl/ingres/trunk@329241 c90b9560-bf6c-de11-be94-00142212c4b1
New release cycle

git-svn-id: https://svn.php.net/repository/pecl/ingres/trunk@329242 c90b9560-bf6c-de11-be94-00142212c4b1