- inlines dasherize helper in sk
- uses an ajax helper to load wizard's ajax lib when in wizard
- amends wizard's ajax lib to work with string as first arg
- disabled loading spinner in wizard as it's not available
This reverts commit 20780a1eee.
* SECURITY: re-adds accidentally reverted commit:
03d26cd6: ensure embed_url contains valid http(s) uri
* when the merge commit e62a85cf was reverted, git chose the 2660c2e2 parent to land on
instead of the 03d26cd6 parent (which contains security fixes)