Initial gui pages by rada.
Allow opening the mod selection screen from the main menu (and returning to it).
Some cleanup of the gui xml files.
Just show the mod selection screen if we start with the modmod as the last mounted mod.
Some TODOs.
Use tabs. Add exit button.
Add GetAvailableMods().
Returns a JS object of the form { modfoldername1: modfoldername1/modfoldername1.json, ... }.
Only mods having a json file with the same name as the folder will be returned.
Update TODOs.
Filtering the mod mod and the user mod is not needed as they do not have a json.
Make behaviour consistent with mod mounting.
Add restart_engine().
Ability to change mods and restart into them.
GUI. merge modmod.js, mainly comments, nothing deleted, only union
Remove useless files.
Move one function to modmod.js
Some whitespace.
manually took over all of leper's changes
Fix mod type filter.