Add release date

git-svn-id: http://svn.apache.org/repos/asf/commons/proper/dbcp@1573507 13f79535-47bb-0310-9956-ffa450edef68
Increment for next release (assuming it is just a bug fix release)

git-svn-id: http://svn.apache.org/repos/asf/commons/proper/dbcp@1573508 13f79535-47bb-0310-9956-ffa450edef68
Small performance tweak. The improvement is just about visible.

git-svn-id: http://svn.apache.org/repos/asf/commons/proper/dbcp@1573510 13f79535-47bb-0310-9956-ffa450edef68
Another small improvement

git-svn-id: http://svn.apache.org/repos/asf/commons/proper/dbcp@1573549 13f79535-47bb-0310-9956-ffa450edef68
Another small performance tweak.

git-svn-id: http://svn.apache.org/repos/asf/commons/proper/dbcp@1573561 13f79535-47bb-0310-9956-ffa450edef68