Updated HUD elements
Wait for HUD to be initialized
Added camera images
Initialize active camera icon
Added rover selection glow
Fix visibility/pointer event handling
Better lightning bolt
Merge pull request #90 from virtual-world-framework/improve-hud

Improve hud
Refactored scenario

Conflicts:
	source/hudInstructions.js
Set and reset scenario
Fixed property reference
Fixed drop behavior & set inventory in scenario
Remove old reload function
Fix bug with multiple success calls
Creates the graph object and defines the blocks required
Adds other style of identifying the blockly nodes
Merge pull request #92 from virtual-world-framework/switch-scenario

Switch scenario
Moves blockyUI to center and removes it while executing program
Make blockly interface draggable
Leave blockly interface up while running