Merge pull request #175 from virtual-world-framework/Ken-Art

Ken McClure: Update to images.  Added failure text to each
Hook up failure screen for scenario2
Merge pull request #177 from virtual-world-framework/lost-fail

Hook up failure screen for scenario2
Disallow subtitle reset on scenario reset
Make subtitles a little faster
Merge pull request #176 from virtual-world-framework/sub-reset

Disallow subtitle reset on scenario reset
By my reckoning this should work but isnt.
Moved lines inside return function to fix readBlackboard.
Amend to use delete instead of setting as undefined and appropriate use of ++.
Removed console.log call
Merge pull request #179 from virtual-world-framework/fix-double-failure

Fix double failure triggering
Fix for resetting the hasFailed blackboard entry
Merge pull request #181 from virtual-world-framework/fix-clear-blackboard

Fix for resetting the hasFailed blackboard entry
Modify boundary map to reflect terrain
New run and stop buttons
Added blockly footer
Added container for run and stop
Added stop button click functionality
Fix drag boundary
Made help screens highest on the z-index