Work on px2

New Stuff:

• Use weapons and armor in combat
• Pixal classes
• Gain XP and levels on won battles
• Changes in stats model: Replace extensible JSON with fixed attributes (ATTACK, DEFENSE, EVASION, ACCURACY, BLOCK)
• Gain skills on level up (according to pixal class)
• Gain bonus points and stats on level up

Todo

• Test all new stuff
• Add race, class and level info to the pixal objects
• Create a frontend
• Set new xp cap on level up
• Allow spending bonus points on stats