Enhancement - version history to include class and method renames

Since <Versions> shows both the class name and method name, it would be
useful to have class and method renames to have that show up in the
version history.

Use case:
1. PersonA creates a ClassA and methodA.  <Versions> shows the author of
ClassA>methodA as PersonA.
2. PersonB renames classA to classB. <Versions> shows the author of
ClassB>methodA as PersonA.  Where as I think the guilty party should
show as PersonB.

cheers -ben