Noticed that slope was not being initialized to 0.0, so reworked the constructor ro initialize the variables in the order they are listed in RealtimeData.h
Fixes in CT support to ensure Gradient/Slope is being defaulted and updated properly between the CTConroller and TrainTool.
Fix to preselect ERG mode in workoutTree.
Merge pull request #469 from jjofre/master

Computrainer fixes for Gradient/Slop Mode and Misc default