0.4.0 (2018/02/22)

add support for importing/exporting/editing sound effect lumps
add 'Thing' and 'Linedef' members to MapEditor class (aliases to the
	thing and linedef classes used by the current map format)
add support for data stored inside map header lumps (e.g. FraggleScript)
add ability for WAD and WadIO classes to use empty space in WAD file, if
	possible ('use_free' argument in relevant methods)
enforce maximum size for patch lumps
remove some old chr() calls for Python 3 users
fix previously broken WAD.load method
fix palette index 0 in patches becoming transparent when exporting
fix some lumps falsely being loaded as maps (e.g. aaliens.wad "LOADACS",
	which was followed by a "SCRIPTS" lump and thus detected as a map)

0.3.0 (2017/10/06)

add support for Python 3.x (experimental; 3.5.0 or higher recommended)
add support for Hexen / ZDoom maps
add better map loading (supports names other than ExMx and MAPxx,
	doesn't mistake MAPINFO for an actual map)
add better support for "limit removing" maps
add tall patch support
add support for importing/exporting RGBA images (converted to the WAD's
	256-color palette on import, but can contain true transparency)
add better handling of missing map data
add draw_sector and misc. helper functions to MapEditor [jmickle66666666]
add ability to individually change single flags (by name) with MapEditor
fix a colormap generation bug and add Colormap.set_position [jmickle66666666]
