Change license to BSD 2 clauses.

CMakeLists.txt

COPYING

include/hpp/manipulation/connected-component.hh

include/hpp/manipulation/constraint-set.hh

include/hpp/manipulation/device.hh

include/hpp/manipulation/fwd.hh

include/hpp/manipulation/graph-node-optimizer.hh

include/hpp/manipulation/graph-optimizer.hh

include/hpp/manipulation/graph-path-validation.hh

include/hpp/manipulation/graph/dot.hh

include/hpp/manipulation/graph/edge.hh

include/hpp/manipulation/graph/fwd.hh

include/hpp/manipulation/graph/graph-component.hh

include/hpp/manipulation/graph/graph.hh

include/hpp/manipulation/graph/guided-state-selector.hh

include/hpp/manipulation/graph/helper.hh

include/hpp/manipulation/graph/state-selector.hh

include/hpp/manipulation/graph/state.hh

include/hpp/manipulation/graph/statistics.hh

include/hpp/manipulation/graph/validation.hh