Replay branch.

[Amar Takhar]

Before I start pushing some of the major changes to make the 'replay' branch 
happen I need a few questions answered:

 - Is it easier to edit the source for renamed defines to match current or 
   should I add compat shims.
 - Will the source layout change almost immediately to match current or should 
   the current files be used.
   * I think this should be a mix some are easy to move around others are not.
 - Some directories such as tools/utils can be backported wholesale is there any 
   reason why this isn't desirable?


Amar.