rules redone

Starting to stray away from Harnmaster standard and toward an hybrid
ruleset.

Character creation changed:
- Added Constitution
- Removed Speed
- Removed Eyesight, Hearing/Smell, Touch, and replaced with Perception
- Added maximum skill caps based on stats (borrowed from Dangerous
Journey)

Initiative rolls changed
- New formula is (200 - skill) - (skill - 1d100), so that the value
considers both Inititative skill and the dice roll.

Critical rolls changed:
- Going from 20% max of crit success and 20% max of crit failure to: 10%
max crit success, 2% max crit failure.
- If skill <= 50% then crit failure is on 99 or 100. If > 50% only on
100.
- If the skill is successful, only *0 is critical. So if skill is 75 and
the dice roll is 60, then it's a crit success.

- tweaked a bit the condition where attacker misses and defender
succeeds.

- character sheet can now be seen and toggled while in the game

- both Initiative and Longsword skills are used in the game, from char
creation actual stats