post for ecosystem update promotion
Merge pull request #25 from huitseeker/feature/ecosystem-update

post for ecosystem update promotion
Remove 2.9 nightly downloads.
Merge pull request #32 from dragos/remove-nightlys-29

Remove 2.9 nightly downloads.
Delete un-referenced include files.
Correctly copy-to-url.
Add a link to videos and getting started on the SDK page.
Merge pull request #33 from dragos/refactor/inline-included-boxes

Remove unused download boxes