Review pull requests from the original repo.

[DaloLorn]

These pull requests need to be reviewed and possibly merged into the repo:

• Make StarRuler2.sh script executable BlindMindStudios/StarRuler2-Source#55
• Rebase threads::atomic_int on std::Atomic<int32_t>, avoiding platform specific code BlindMindStudios/StarRuler2-Source#56
• BSD support BlindMindStudios/StarRuler2-Source#58
• Fix build for newer gcc versions BlindMindStudios/StarRuler2-Source#70
• Fix loading mods from the profile directory BlindMindStudios/StarRuler2-Source#78 (IIRC, KB already committed this to OSR-Source)

[kb-1000]

I've actually done BlindMindStudios#55 already in 50a9941. BlindMindStudios#70 has a commit with the same content.

[DaloLorn]

BlindMindStudios#70 has a commit with the same content.

It does, yes, but it also contains other things besides that.