Removed legacy symbolic derivative propagation in ImplicitFunction, #663
Removed nrhs argument from ImplicitFunction signature, #663
Added jacobian and linear solver argument to the ImplicitFunction signature, #663
Removed default constructor declarations in internal classes, #663
Refactored cloning in ImplicitFunction, #663
Renamed J_ -> jac_ in ImplicitFunction, #663
Updated signature of ImplicitFunction creator function, #663