* Google changed from an Inc to an LLC.
This happened back in 2017 but we didn’t notice. Officially we should update files from Inc to LLC when they are changed as part of regular edits, but this is a nightmare to remember for the next decade.
* Remove project description/titles from licenses
This is no longer part of Google’s header requirements. Our existing descriptions were useless (“Visual Blocks Editor”) or grossly obselete (“Visual Blocks Language”).
* License no longer requires URL.
* Fix license regexps.
JSON array with null or undefined value will now skip the offending item, and proceed to load following items. Added tests for null and undefined array elements.
* Testing handling null and undefined id in block definition.
* Adding test utility function to capture console warnings.
* Test assumption that creating a simple block will not cause a warning. This is assumed when later checking warning counts.
* Beginnings of a JSON block definition unit test set.
* Dispose of unit test workspaces and blocks in finally blocks.
* Clarify JSON error message by echoing arg notation.
