Incompatible changes between v0.8.2 & v0.8.3

• In function _3d_add_plane the X & Y list should be 1D lists and not 2D as before.

Incompatible changes between v0.8.1 & v0.8.2

• Removed functions: plot, plot_polar, plot_par
• Renamed function plot_stat to plot
• Converted functions to object oriented look: axes, grid, plot & merge

Incompatible changes between v0.7.4 & v0.8.0

• Converted functions to "object-oriented look": get_type, get_col & get_row.

Incompatible changes between v0.7.3 & v0.7.4

• Removed function sub_string
• Removed the var(index_expr) syntax

Incompatible changes between v0.7.2 & v0.7.3

• Converted functions to "object-oriented look": set_pixel, set_point, get_top, get_bottom, get_left, get_right, line, pixel_line, circle, pixel_circle, get_width, get_height & set_window.
• Renamed function solve -> nSolve
• Removed function cls.
• Functions menu, message & input must specify a dialog title.
• Function input must also specify how to convert the inputs.

Incompatible changes between v0.7.1 & v0.7.2

• .ump-files doesn't support "global" programming any more.
• The variable type List has changed name to Array.

Incompatible changes between v0.7.0 & v0.7.1

• The functions get_bottom, get_height, get_left, get_right, get_top,
  get_type, get_width, load_picture, save_picture & set_window.
  has replaced the functions getbottom, getheight osv..
• Function strtofunc has been removed.
• The variable type 'Function' has been removed, and variable type 'String' has been extended with similar functionality.

Incompatible changes between v0.1.4 & v0.7.0

• Function perm has replaced nPr.
• Function comb has replaced nCr.