Updated CHANGES to reflect 2.0.0 RC2 content

Preparing Apache Knox v2.0.0 Release

Release of v1.6.1

Preparing Apache Knox v1.6.1 Release

Release of v1.6.0

V1.6.0 (#515)

* KNOX-2655 - Disallow Userinfo in KnoxSSO originalURL Query Param

KNOX-2685 - Show/hide (enable/disable) Knox token management links on…

… Home Page if required alias is created (#512)

KNOX-2684 - Fixed logout.jsp compilation issue (#511)

Preparing Apache Knox v1.6.0 Release

Release of v1.5.0