`hystar` 1.2.1.9000 (development version)

Default argument for p_select in hystar_fit() now shows all four options. The new default is p_select = c("bic", "aic", "aicc", "aiccp"), and the first option "bic" is taken when the user doesn't provide the argument.
Not necessary to provide all regime names and colors, can all be specified separately
Added call to hystar_sim and hystar_fit objects. Call now also printed in print method.
The user-feedback about the progress is now not shown by default, but can be requested by setting the show_progress argument in hystar_fit() to TRUE. This is because knitr did not handle the appendLF = FALSE argument (ensuring progress gets printed on the same line each iteration, and not on a new line) of the message()-function well (that prints the progress-feedback); as a result, the print of hystar_fit() in my example on github and on the website was veeery long.

`hystar` 1.2.1

Added a welcome message with a logo and first directions for help.
Added user-feedback about the progress of the estimation when running hystar_fit()
Added the change-point information criterion

More options to customize the graphs from the plot()-method for R-objects of class hystar_fit and hystar_sim:
- the colors of the background and lines
- line types and widths of z, y and the thresholds
More default arguments in z_sim: n_t = 100 and n_switches = 2. Now, all arguments have a default, which allows you to create examples faster.
More default arguments in hystar_sim: r = c(-0.5, 0.5), d = 0, phi_R0 = c(0, 0.5) and phi_R1 = c(2, 0.5). Now, the only necessary argument is z.

Fixed a mistake in the estimation of the asymptotic standard error. I noticed this during simulations, where some confidence interval coverage rates were strikingly low. All is fine now!