* NEW: ``options = {"assure_3d_coords": True}``, guarantees (x, y, z) tuples for ALL coordinates, this option is by default
``False``
* NEW: extended TrueColor() class, see docs
* NEW: dxfgrabber.aci_to_true_color(index) returns the DXF default true color value for AutoCAD Color Index *index*
as TrueColor()
* NEW: added is_backwards, is_upside_down, width, oblique, font, bigfont attributes to TEXT, ATTRIB, ATTDEF entities
* NEW: added plain_text() method to TEXT, ATTRIB and ATTDEF to get text content without formatting codes like '%%u'
* NEW: added font, bigfont, rect_width, horizontal_width and vertical_height attributes to MTEXT
* NEW: added resolve_text_styles(text_styles) method to TEXT, ATTRIB, ATTDEF, MTEXT entities
* NEW: new import option "resolve_text_styles" and it is *True* by default
* NEW: added extrusion direction to all entities
* NEW: added row_count, col_count, row_spacing, col_spacing attributes to INSERT.
* NEW: MText.plain_text(split=False) tries to remove format codes, returns a single string or a list of strings
* NEW: added n_smooth_density, m_smooth_density, smooth_type to Polymesh
* NEW: added smooth_type to Polyface
* CHANGE: LWPolyline again: LWPolyline.points list of (x, y) or (x, y, z) depends on "assure_3d_coords",
LWPolyline.width list of (start-width, end-width), .bulge list of floats, removed LWPolyline.get_rstrip_points() and
added .const_width attribute (if != 0, ignore .width list).
* CHANGE: Polyline method points() is now a field (list) and added lists for width and bulge for consistent APIs of
LWPolyline and Polyline.
* BUGFIX: wrong DXF subclass for Arc.extrusion (error in DXF Standard)