* Driver F-Curves were not getting fixed by the "FCurve/Driver Version
Fix" tool. This was causing problems such as shapekey drivers from
older (2.56 compatible rigs) failing to run. As well as renaming the
paths for these Driver F-Curves, the "disabled" flags also get cleared
from these drivers so that they can be run again
* "Revive Disabled F-Curves" operator in Animation Editors can now be
used to revive disabled drivers too.
- any numnber of attributes are supported for renaming, eg: modifiers["Foo.Bar"].prop.bar
- the path is resolved in blender so each attribute is type checked against the naming list.
- inherited properties are supported by recursively checking parent classes names aganst the name list.
- fcurves and drivers are currently supported.
