Merge pull request #406 from virtual-world-framework/kevin-tweaks-3

- The SCAN block no longer relies on invisible objects.  Instead, it
This Commit Replaces VO
Add the license to everything.
Updated README.md
Make "Apache 2" be a link.
Merge pull request #411 from virtual-world-framework/Chris-Sounds-7

This Commit Replaces VO
Merge pull request #410 from virtual-world-framework/license-2

License 2
rename clearBlackboardValue => clearBlackboardEntry
Move the videos into their own scenarios, handle their exits properly.
- remove debugging output
- add the missing files