Changes for AP2DataPlot to have a table view for log data, and a treeview for variable/graph selection
Removal of unneccesary dock widgets from the Plot view
Addition of "Clear Selection" button for AP2DataPlot, for clearing out all graphs and blanking the plot
Code cleanup and readability fixes
Fix for bug, where the AP2Plot widget would not work if a MAV changed sysid (M1 became M4 for instance)