TriAevum v0.6.0-alpha.3b

BROKEN - WITHDRAWN. Do not use this release. Downloadable packages have
been removed pending further verification. The original notes below are
retained for historical reference, not as a current reliability claim.

Start Means Start

• Fixed #48: pressing Start during the title sequence no longer ends your
  adventure before the save menu. An ambitious speedrun category, now retired.
• The same renderer composition fix is included on Windows and Linux.
• Everything else from alpha.3 stays: TopScreen, HD fonts, configurable graphics,
  and an entirely unreasonable quantity of grass. Save formats are unchanged.

Windows: portable ZIP. Linux: AppImage. Back up saves/settings before updating;
prefer normal game saves over savestates made during Sheik's revelation flashback.
Steam Deck remains a compatibility target, not a hardware-tested certification.

Thanks to rlgcarrot for TopScreen,
reimplemented here (support their work),
Sion / 999sian for their PR contributions, and Ship of Harkinian, Azahar,
NRI and the other donor projects.