kdl_typekit: use updated orocos_kdl find_package name (was Orocos-KDL)

see http://git.mech.kuleuven.be/?p=robotics/orocos_kinematics_dynamics.git;a=commit;h=927d1a0ac596482ef9d76565ebd1f566e699d319
Merge pull request #3 from meyerj/patch-1

kdl_typekit: use updated orocos_kdl find_package name (was Orocos-KDL)