Neo4j slides + notes: stub out slides layout!
Neo4j slides + notes: implement notes layout!
Neo4j slides + notes: implement functionality!

This is in a working state now. A little rough around the edges, but works!
Neo4j slides + notes: add URL hash updating!
Neo4j slides + notes: minor visual tweaks.
Neo4j slides + notes: add simple keyboard support.
Neo4j slides + notes: improve notes for sharing!

In particular, link things since these'll now be seen on the web!
Neo4j slides + notes: work in Firefox. =)
Neo4j slides + notes: minor iOS hack.
Merge branch 'feature/neo4j-talk-notes' into develop