Release v0.9

[JoshuaLampert]

This issue collects breaking changes we want to include in version v0.9:

• Change default_example to use https://github.com/NumericalMathematics/DispersiveShallowWater.jl/blob/6881e80061c553c5a3f1ec45888376186f48b8ca/examples/serre_green_naghdi_1d/serre_green_naghdi_soliton.jl instead, see discussion in the default example is physically unrealistic #256, done in Change default example #276
• Introduce argument plot_analytical in plot recipes, which takes the role of the current plot_initial and let plot_initial indeed plot the initial condition (at time $t_0$), see discussion in plot_inital = true does not work #254, done in Add plot_analytical to plot recipes #277

[ranocha]

(at time 0)

It should be first(tspan), see

DispersiveShallowWater.jl/src/semidiscretization.jl

Lines 244 to 251 in 6881e80

	"""
	semidiscretize(semi::Semidiscretization, tspan)
	Wrap the semidiscretization `semi` as an ODE problem in the time interval `tspan`
	that can be passed to `solve` from the [SciML ecosystem](https://diffeq.sciml.ai/latest/).
	"""
	function semidiscretize(semi::Semidiscretization, tspan)
	q0 = compute_coefficients(semi.initial_condition, first(tspan), semi)

[JoshuaLampert]

Yes, thanks 👍

[JoshuaLampert]

Is there anything else to consider for this breaking release or can I register v0.9?

[ranocha]

I think we are ready for v0.9. Thanks for taking care of it 👍