New HP / con scaling

Not playtested; may be terrible.  Damage scaling not updated.
Update damage scaling.

As part of this, increase damage on Poisoned Dart's poison.  Increase Charged
Bolt's accuracy.  Number of bolts now scales flatly by Mind + damage per bolt
scaling by Mind.  Increase damage on explosive tag.

Poison should always be integral, so update long_desc to match.
Various updates for new damage scaling
Update damage for Bash and Kick

Resize character sheet for bigger screen.  Reduce cooldown on
Poisoned Dart.

Add logic for damage that depends on different stats.
Fix armor to apply to all physical, only physical
Merge branch 'mechanics2'