Changes to plotting and slider functions

Version 0.980

1. Fixes memo control snapping to the top line when splitter is changed (That was a tough one)
2. Added boundary species to the list of scannable parameters
3. added boundary species to slider list
4. XMin, etc edit box correctly dimmed when using autoscaling
5. Slider values now stay put when switching frames.
6. Save to pdf has been moved to the right click graph popup menu to save space
7. The color of the loaded data points will try to match the simulation color if the column labels match
8. Lucian suggested I allow overlays of multiple loaded data files, there is a check box to enable, by default its off.