Moved HUD images to images/hud subfolder
New close/minimize button and drag handle
Modified drag handle and close button
Adjusted colors
Changed tab images
This fixes issues with repeating VO and stopping sounds/playing success/failure music.

Conflicts:
	source/scenario/scenario1.vwf.yaml
Modified tabs and added border
Merge pull request #169 from virtual-world-framework/blockly-ui-improvements

Blockly ui improvements
Merge pull request #168 from virtual-world-framework/scenario-start-trigger-fix

Fixed Scenario Start Trigger Issues
Add text to failure screens