Address errors, improvements, formatting

- Removed unused code not portable due to buffer() use
- raw_input() does not exist in Python 3
- Fixed octal constant syntax for Python 3
- Fixed TypeError
- Replace if not exists: makedirs(path) with single call: using makedirs(path, exist_ok=True)
- Class inherits from object, can be safely removed from bases in python3: pylint's useless-object-inheritance (W0235) check

Signed-off-by: JoeLametta <JoeLametta@users.noreply.github.com>

whipper/image/table.py

@@ -157,7 +157,7 @@ class Index:
             self.number, self.absolute, self.path, self.relative, self.counter)
 
 
-class Table(object):
+class Table:
     """
     I represent a table of indexes on a CD.