Script Editor:

Added: Tab text now looks differently when appropriate script was changed.
Added: Script Editor now has it's own status bar.
Added: several files can now be opened at once when using "Open File" command.
Added: ACS scripts navigator now shows script and function arguments.
Changed: when closing a tab, previous tab is selected instead of the first tab.
Changed: SCRIPTS lump can't be compiled as a library.
Changed: external acs files can only be compiled as libraries.
Changed: when an external acs file is marked as #library, it will be saved as [library name].o alongside [filename].acs.
Fixed: files opened using "Open File" command were immediately flagged as changed.
Fixed: Script Editor was unable to navigate to error location after clicking on the error description when the error was in include file.
Updated ZDoom ACC.