Fixed: "Select Things in Selected Sectors" action was clearing selected sectors without updating the display.
Changed, Sectors mode: number of selected things is now displayed in the info panel.
Changed, Game Configurations window, "Testing" tab: game engine executable browser now opens up when clicking the "Add game engine" button.
Changed, Game Configurations window, "Testing" tab: default game engine display name is now generated from the folder name game engine executable is in.
Changed, Visual mode: Sector_Outside (87) sector effect is now taken into account when determining sector fog color.
Game configurations: added "defaultwalltexture", "defaultfloortexture" and "defaultceilingtexture" parameters. These define textures used when drawing a sector (usually the first sector of a map only).
Game configurations: classic game configurations now use "-warp" command to load the map.
Game configurations: factorized testing parameters into "Includes\Test_params.cfg".
Added internal functions to Hexen acs scripting configuration.
Updated documentation ("Game Configuration - Basic Settings" topic).
Game Configurations: updated things in ZDoom "Bridges" category to use argument types 23 and 24.
Documentation: added "Action Argument Settings" page, updated "Basic Settings", "Map Format Settings", "Linedefs Settings" and "Things Settings" pages in Configurations -> Game Configurations group.
Documentation: updated "DECORATE keys" page.
Added, Game configurations: added "thingclasshelp" property. It's used to open a website when thing class name is clicked in the Thing Edit form.
Changed, "Raise/Lower sector to nearest" action: 3d floors are now taken into account when using the action on things.
Updated documentation.
