Set hud element visibility and fix hud.update location
Replaced leftover "node" reference. Set currentBlocklyNode to undefined if a blocklyNode is not found using the property value.
Removed outdated comments
Merge pull request #33 from virtual-world-framework/branch/toggle-rover-hud

Branch/toggle rover hud
Added basic success method
Fixed formatting. Removed cycling RAM.
Added failure conditions
Added interface to launch new session on success/fail