Start working on some undo / redo functionality. this is just the start, only module state changes and fit rename is implemented, and probably not very well x_x

service/fit.py

@@ -170,8 +170,11 @@ class Fit(object):
     def renameFit(fitID, newName):
         pyfalog.debug("Renaming fit ({0}) to: {1}", fitID, newName)
         fit = eos.db.getFit(fitID)
+        old_name = fit.name
         fit.name = newName
         eos.db.commit()
+        return old_name,  newName
+
 
     @staticmethod
     def deleteFit(fitID):