Changed all instances of 'dependancy' to 'dependency'

include/sot-core/binary-op.h

include/sot-core/derivator.h

include/sot-core/feature-abstract.h

include/sot-core/feature-generic.h

include/sot-core/feature-joint-limits.h

include/sot-core/feature-line-distance.h

include/sot-core/feature-point6d-relative.h

include/sot-core/fir-filter.h

include/sot-core/gain-adaptive.h

include/sot-core/gain-hyperbolic.h

include/sot-core/integrator-abstract.h

include/sot-core/matrix-constant.h

include/sot-core/op-point-modifier.h

include/sot-core/sot-qr.h

include/sot-core/sot.h

include/sot-core/task-abstract.h

include/sot-core/task-pd.h

include/sot-core/task.h

include/sot-core/unary-op.h

include/sot-core/vector-constant.h