Small improvements, fixes, and balances (mostly technical update) — HellEscape Steam update #814166

- Added more interesting walking pattern to enemies - this might make the "ball of death" a little bit less noticeable, let me know what you think! - Added a 0.75 seconds invulnerability to newly spawned creatures so they won't die while still spawning. - Nerfed banish a little bit. - Made Throwing Daggers and Bear Trap stronger. - Added 'Freezing Aura' to Spirit Wolf. - Upgraded Photino.net and SINI libraries. - Some optimizations. - Made 'Decoy' weaker and spawn less often. - Made Orc special ability last longer. - Made some special weapons not be affected by speed factors, like Fire Shield and Spike Ball, which are made of constant projectiles. - Made Spike Ball slightly weaker.