Wrap getting attribute data in a try/except

Useful for when we try to get an sub-attribute on an object where the
attribute doesn't exist. Now returns the default value.

eos/gamedata.py

@@ -244,9 +244,12 @@ class Item(EqBase):
         return self.__attributes
 
     def getAttribute(self, key, default=None):
-        if key in self.attributes:
-            return self.attributes[key].value
-        else:
+        try:
+            if key in self.attributes:
+                return self.attributes[key].value
+            else:
+                return default
+        except AttributeError:
             return default
 
     def isType(self, type):

eos/modifiedAttributeDict.py

@@ -26,17 +26,23 @@ cappingAttrKeyCache = {}
 
 class ItemAttrShortcut(object):
     def getModifiedItemAttr(self, key, default=None):
-        if key in self.itemModifiedAttributes:
-            return self.itemModifiedAttributes[key]
-        else:
+        try:
+            if key in self.itemModifiedAttributes:
+                return self.itemModifiedAttributes[key]
+            else:
+                return default
+        except AttributeError:
             return default
 
 
 class ChargeAttrShortcut(object):
     def getModifiedChargeAttr(self, key, default=None):
-        if key in self.chargeModifiedAttributes:
-            return self.chargeModifiedAttributes[key]
-        else:
+        try:
+            if key in self.chargeModifiedAttributes:
+                return self.chargeModifiedAttributes[key]
+            else:
+                return default
+        except AttributeError:
             return default