Updated, Visual mode: some cases when the sky hack must be applied were not handled.

Updated, Script editor: script editor was unable to show error location after double-clicking on it in the Warnings and Errors window when said location was inside of a WAD located in a PK3 file.
Updated, text lumps tracking: already parsed DECORATE/GLDEFS lumps are now added to the text lumps list even when DECORATE/GLDEFS parsing fails, allowing you to fix errors without the need to use external tools.
Fixed: in some cases the editor could stuck in an infinite loop when searching for wad lumps.