small update 0.1.1

[u][b]Changes:[/b][/u] [list] [*] Optimized and reduced enemy spawning (in second level). [*] Increased stamina when running. [*] Reduced prices all Weapons. [*] Optimized performance an several models. [/list] [u][b]Bugfixes:[/b][/u] [list] [*] After dying and starting a new game, loot only became available again after completely restarting the game. [*] In some cases, the safe was not saved after the player died and continued the game. [*] In some cases, a weapon could no longer be equipped after the player died and continued the game. [/list]