Add additional docstrings and refactor/rearrange the entire codebase.

volatility/framework/exceptions.py

@@ -4,17 +4,22 @@ Created on 1 Dec 2012
 @author: mike
 """
 
+
 class VolatilityException(Exception):
     """Class to allow filtering of all VolatilityExceptions"""
 
+
 class SymbolError(VolatilityException):
     """Thrown when a symbol lookup has failed"""
 
+
 class InvalidAddressException(VolatilityException):
     """Thrown when an address is not valid in the space it was requested"""
 
+
 class SymbolSpaceError(VolatilityException):
     """Thrown when an error occurs dealing with Symbols and Symbolspaces"""
 
+
 class LayerException(VolatilityException):
     """Thrown when an error occurs dealing with memory and layers"""