Patch Notes 0.3.5.3

Thanks for all the feedback and bug reports!
- Fixed a bug where the player was receiving damage from his own lightning bolts
- Fixed a bug where the player was getting extra mana from the “Mana Collector” card when fighting spawned characters
- Added IFrames to projectiles to avoid situations where one projectile hits an opponent several times. Exceptions are boomerangs and other weapons whose projectiles turn back
- Gladiator is now weaker
- Reworked some objects in networking. Multiplayer should run now a little smoother
- Some minor bugs