0.2.9
   -Cursor
   -New backgrounds
   -Reload cost depends on level number

0.2.8
   -Background images in play mode
   -Background transparency can be set from Options menu
   -Level titles
   -Help button

0.2.7
   -New help pages
   -Now there are 4 difficulty levels (Easy, Normal, Heavy and Sucks)
   -When completing game, default difficulty level is increased (if not already at maximum)
   -In input now you can type non-alphanumeric characters
   -New function: Swap (swap two tiles)
   -18 levels
   -Difficulty level is stored in savegame file
   -Tileset preview in Options

0.2.6
   -17 levels
   -New wall tile: Destructor
   -Make warnings cleared

0.2.5
   -new tileset: stone
   -default tileset is stone
   -tileset can be choosen in Options screen
   -changes in edit mode (modified layout, Play button)
   -new background image in main menu
   -two difficulty levels (can be choosen from Options)
   -maximum amount of special function (build, clear, etc) can be set in Edit mode (doesn't affect game with Easy difficulty)
   -Push function

0.2.4
   -new command line switch: verbose - more messages
   -new command line switch: autonormal - automatically return to normal mode after using a function
   -new command line switch: noautoreload - when time is up, don't reload the level but end game
   -Options screen: you can set fullscreen, autoreload and autonormal values
   -error message if data directory not found
   -using configfile (data/config)
   -15 levels
   -level 13 is modified
   -in Highscore table level number is stored

0.2.3:
   -Painter
   -12 levels

0.2.2:
   -Sandglass timer
   -11 levels

0.2.1:
   -Command line options (fullscreen, change tileset, set gravity)
   -Erase function removed
   -New functions: Undo and Save
   -Several new wall tiles and Levitator
   -Help in Edit mode, new Help pages
   -Edited level can be player from editor (P key)
   -Contains 10 levels

0.2.0:
   -Faster graphics
   minor upgrades and bugfixes

0.1.6:
   -Fullscreen mode (Options menu or F key)
   -Help screen is available while playing (F1 or H key)

0.1.5:
   -Highscores
   -Help screen
   -Now contains 7 levels

0.1beta2:
   bugfixes:
   -Edit mode: first level timelimit is displayed correctly
   -Memory leak fixed

0.1beta1:
   major changes:
   -Edit mode
   -Reload tool
