Fixes #79: "Released" date of version "v2.2.0"

Fixes #79: Corrected "Released" date of version "v2.2.0"

Existing "Released" date is showing as "## v2.2.0 / 2013-01-21" which is not correct. Corrected to "## v2.2.0 / 2014-01-21". Year should be 2014 not 2013!