Correct spelling mistakes.

wifite/tools/aireplay.py

@@ -204,7 +204,7 @@ class Aireplay(Thread, Dependency):
                     if 'Got RELAYED packet' in line:
                         self.status = 'got relayed packet'
 
-                    # XX:XX:XX  Thats our ARP packet!
+                    # XX:XX:XX  That's our ARP packet!
                     if 'Thats our ARP packet' in line:
                         self.status = 'relayed packet was our'
 

wifite/tools/dependency.py

@@ -9,7 +9,7 @@ class Dependency(object):
         for attr_name in cls.required_attr_names:
             if not attr_name in cls.__dict__:
                 raise NotImplementedError(
-                    "Attribute '{}' has not been overriden in class '{}'" \
+                    "Attribute '{}' has not been overridden in class '{}'" \
                     .format(attr_name, cls.__name__)
                 )