Links to sub-content

[jbenet]

It's important to be able to link directly into acorns' subcontent.

# link to a specific highlight.
http://acorn.athena.ai/idsjafpoid#highlight-name ?
http://acorn.athena.ai/idsjafpoid#highlight-number ?
http://acorn.athena.ai/idsjafpoid/highlight-number ?

# link to a specific slide in a slideshow.
http://acorn.athena.ai/idsjafpoid#slide-number
http://acorn.athena.ai/idsjafpoid/slide-number

# link to a specific item in a collection.
http://acorn.athena.ai/idsjafpoid#item-number
http://acorn.athena.ai/idsjafpoid#item-number
http://acorn.athena.ai/idsjafpoid/item-number

Unclear what the best strategy is (hash vs path).
Path would conflict with name (breaking current links (bad!))
Hash seems to be much better (anchors are "sections" of content)