Devlog #15 Bug fixes

Hi folks! 

There has been a little bit of rework here and there making player's life better:

• Stats UI now display info when adding and substracting
• Destructibles now has less health
• Soul now also slightly increase health
• Crossbow skeleton now has a reload animation and attacks less often
• Running is now with SHIFT since R was too akward to reach
• Trebuchets now also damages enemies (Have fun with that!)

Let me know if there is anything else that could improve the game!