deprecated functions removed.
correction in bp_lm() of the use of the intercept.
correction of the use of bp_lm() in rmse_prev.
function get_coeff_plot() removed to avoid using ggplot2 and patchwork.
doc improvements.
prevision attribute (for example in oos_prev()) renamed to forecast.
renaming of exported S3 classes : "bp.lms", "piecereg" and "hansen.test" to "bp_lms", "piecereg" and "hansen_test" respectively.