Yet another bugfix/balance patch is out.

General Notes:

• make sponge dart gun more responsive
• fix dart sprites
• make crackers a bit more reliable and visually responsive (thanks Korzodin)

Grumble Fixes:

• fix some grumble sound design things
• grumble tornado windup needed to be longer
• nerf grumble tornado attack
• scale back grumble usage across all maps

MAP04 fixes:

• add more pillars for cover in certain fights

MAP05 fixes:

• fix level geometry a bit
• make enemy placement more balanced
• add more health
• add more autosave areas
• make MAP05 final arena more robust

This update will break saves for MAP04 and MAP05.

Cheers.