Error Checker: added config options to ignore unknown textures on sidedefs for certain actions. Resolves #518

CEMPOIS (base)
PLANET1 (base)
SP_DUDE3 (marble)
SP_DUDE6 (marble)

These textures only appears in IWAD
doom.wad and not doom2.wad.

Remove unused Zandronum_texturesets.cfg

The texture browser categories for Doom
are focused on Doom 2. This also categorizes
some entries that only appear in Doom 1.

Unfortunately it looks like the new filters
will only be applied on fresh UDB installs.
Existing installs must click the
"Add Default Sets" button under the "Textures"
tab for their Doom 1 game configs.

Added preliminary DECALDEFS support. Parsing works, indexed decals and decal groups can be selected as the first argument of the Decal thing. Decals are not displayed in Visual Mode, decals without an index are not supported

Hexen game configuration: corrected an error where things 78 ("Tall Tree 1") and 79 ("Tall Tree 2") had their sprites interchanged

Heretic game configuration: actions 28 and 33 now correctly state that they are for green keys instead of non-existing red keys. Fixes #468.

Added action 109:Light_ForceLightning to Hexen configuration. Also changed the description of the parameters in the ZDoom configuration to make it more clear what it does. Fixes #459.

Files specific to UDB are now used in the program configuration folder. The files are now called UDBuilder.cfg, UDBuilder.log, and UDBCrash.txt. If there's no UDBuilder.cfg it first tries to copy GZBuilder.cfg before creating a new configuration file. Resolves #442

Fix exception caused by horizontal mouse wheel (resolves #409 reported by ioan-chera, reported by KanaiZo)

Added the "nocount" UDMF thing flag (as "No completion count") that was added in GZDoom 4.4.0 to the ZDoom config. Fixes #422.

Hexen/UDMF linedef action 28 is now correctly labeled "Floor Raise And Crush" instead of misleading "Floor Crusher Start". Fixes #386.

This extra block helps ZDBSP building better nodes for maps that are too big and starts generating visual issues with regular nodebuilding.

* Artiscript added.

*  Artiscripts added.

And optional parameters for client/server scripts.