Converted the IOErrors i missed before

overviewer_core/textures.py

@@ -236,7 +236,7 @@ class Textures(object):
             # try the MCPatcher case first
             watertexture = self.load_image("custom_water_still.png")
             watertexture = watertexture.crop((0, 0, watertexture.size[0], watertexture.size[0]))
-        except IOError:
+        except TextureException:
             watertexture = self.load_image("water.png")
         self.watertexture = watertexture
         return watertexture
@@ -251,7 +251,7 @@ class Textures(object):
             # try the MCPatcher lava first, in case it's present
             lavatexture = self.load_image("custom_lava_still.png")
             lavatexture = lavatexture.crop((0, 0, lavatexture.size[0], lavatexture.size[0]))
-        except IOError:
+        except TextureException:
             lavatexture = self.load_image("lava.png")
         self.lavatexture = lavatexture
         return lavatexture
@@ -269,7 +269,7 @@ class Textures(object):
             firetextureEW = self.load_image("custom_fire_e_w.png")
             firetextureEW = firetextureEW.crop((0, 0, firetextureEW.size[0], firetextureEW.size[0]))
             firetexture = (firetextureNS,firetextureEW)
-        except IOError:
+        except TextureException:
             fire = self.load_image("fire.png")
             firetexture = (fire, fire)
         self.firetexture = firetexture
@@ -285,7 +285,7 @@ class Textures(object):
             # try the MCPatcher case first
             portaltexture = self.load_image("custom_portal.png")
             portaltexture = portaltexture.crop((0, 0, portaltexture.size[0], portaltexture.size[1]))
-        except IOError:
+        except TextureException:
             portaltexture = self.load_image("portal.png")
         self.portaltexture = portaltexture
         return portaltexture