(Changes are since the 0.84 version, r304)
+ large overhaul of file handling:
+  new Default Properties panel (shown in vertex mode)
+  implemented picture mode for Thing browser
+  new Move/Scale/Rotate dialogs (via Edit menu)
+  support for Doom Legacy, courtesy Wesley Johnson
+  support for HACX (not quite finished, but usable)
+  3D view: fixed the slime trails
-  added 'd' disconnect command for sectors
-  added 'm' merge command for vertices
-  added 'm' merge command for two linedefs
! the -iwad parameter can no longer be a directory name
-  shortcut key for 'File/Export Map' is now CTRL-E
-  swapped sector height keys: '.' ',' <---> '[' ']'
-  grid-snap button is easier to use (a toggle button now)
-  can disable multi-select ('multi_select_modifier' config var)
-  sectors created outside of map now have fixed size
-  show a '*' in window title when map has unsaved changes
-  got 'View/Jump to Object' command working ('j' key)
-  got 'View/Show Object Numbers' working (also on 'J' key)
-  new 'View/Whole Selection' command
-  new 'View/Toggle Grid Type' command
-  fixed rotating a group of things to update their angles too
-  fixed wrong color of a tagged linedef or sector
-  fixed zooming out on File/Open when map has persistent state
-  fixed middle texture when pasting and linedef lost a side
-  config: default grid size is now 64 (was: 128)
-  config: added var: default_grid_size
-  config: added var: default_grid_snap
-  config: added var: digits_set_zoom
-  config: added var: new_sector_size
-  config: added vars: gui_scheme and gui_color_set
-  config: added some glBSP-related vars