HDX/AV: Sequence of events when starting an AV

[jteresco]

It seems that these two lines

EduTools/HighwayDataExaminer/hdxcallbacks.js

Lines 138 to 139 in d469ee4

	hdxAV.nextAction = "START";
	hdxAV.nextStep(hdxAV.currentAV);

should come after these 4 lines

EduTools/HighwayDataExaminer/hdxcallbacks.js

Lines 140 to 143 in d469ee4

	addBreakpointListeners();
	resizePanels();
	hdxAVCP.hideEntries();
	newMapTileSelected();

to make sure all of the selection cleanup and AV prep is done before we start running the first action.

[MikePlekan]

I tried a few different maps and AVs, seems to work fine with the swap.