Spanish, fixes, balancing [0.9.1]

Special thanks to Emilio Tolsada (1) and Sensei Bean (2) for their help! [h2]New stuff[/h2] [list] [*] [b]New language: Spanish (1)[/b] [/list] [h2]Balancing[/h2] [list] [*] [b]Fakir Training:[/b] 20% chance to block trap damage => 50% [*] [b]Hell’s Dagger:[/b] +1 up damage per devil item taken => +2 [*] [b]Carving Knife:[/b] 8% to get item on a corpse => 15% [*] [b]Precision Knife:[/b] 16% to get item on a corpse => 25% [*] [b]Unkillable:[/b] -3 Max HP every fatal hit => -2 [*] [b]Fruit Basket:[/b] starts with 3 charges => 5 [*] [b]Enhanced Fruits:[/b] +3 coins => +10 [*] [b]Beelzebub:[/b] +20% Damage => +10% [*] [b]Athletic Insects:[/b] HP increased [/list] [h2]Fixes & small tweaks[/h2] [list] [*] Fixed a bug where Lightning Sword would display 0 damage when your tech is low even though it actually deals a minimum of 1 damage. [*] Fixed other descriptions. [*] Changed the sound effect of hitting goo, laser bullets and lava projecitles. [*] Fixed a bug where the description of some arena rewards were overflowing. (2) [/list]