Working save import for versions 1.0+

Curently it’s not possible to load savefile from game version 1.0+, so we can’t import our alt recipes, which makes it really annoying to filter those recipes manualy.

This is error I get when I try to upload v1.0+ save:
Error while parsing savegame

Cannot read string of length 544433513 at position 234 as it exceeds the end at 2341974