[Bug 526] - Document the regression testing framework

http://bugs.winehq.com/show_bug.cgi?id=526

[e-mail] changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|[e-mail]        |[e-mail]
             Status|NEW                         |ASSIGNED

DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG 
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
http://bugs.winehq.com/show_bug.cgi?id=526.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND 
INSERTED IN THE BUG DATABASE.