Merge pull request #146 from creesch/patch-1

Bootstrap requires jquery + html error
Automatically scroll plugins into view
Don't use jQuery, simplify
Fix embed DOM classes

Classes, IDs and Names in the DOM have to begin with a letter. The $$hashKey
however might not, so prefix it with embed_. This also makes the classes more
unique, which is a good thing. Additionally, don't scroll on undefined should that
ever happen.

Fixes #45
Merge remote-tracking branch 'upstream/master'