Better support GMHTML5 [Reader error: asset data error: version error: expected 541 (5.41), found 820 (8.2)]

[LiEnby]

GMHTML5 still used the old 'rundata' system when building for windows

however attempting to decompile such a game will give

Error parsing gamedata:
Reader error: asset data error: version error: expected 541 (5.41), found 820 (8.2)

the game can be decompiled with --lazy however (it gives a 8.1 file still though)
but i dont think its fully compatible with the html5 game format ....

attached an example html5 game exe
Project3.zip