Add source URLs to animation.vwf.yaml.
Merge pull request #179 from virtual-world-framework/branch/animation-sourceURL

Add source URLs to animation.vwf.yaml.
Add "checkForSuccess", "checkForFailure", and "failed" to task.vwf.yaml
Merge pull request #178 from virtual-world-framework/branch/improve-task-component

Add "checkForSuccess", "checkForFailure", and "failed" to task.vwf.yaml
Factor js out of task.vwf.yaml into task.js
Merge pull request #180 from virtual-world-framework/branch/refactor-task

Factor js out of task.vwf.yaml into task.js
Allows the toggleBlocklyUI event to pass in the node of interest
Removes the event toggleBlocklyUi in favor of the blocklyUiNodeID property