Spike to introduce Apollo

[jacobwegner]

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[jacobwegner]

@paltman take a look at each of the following commits:

• c1a4761 introduces the apollo object
• 930b563 refactors the query to use name matching (so we can access the data via whatever name we want (e.g. libraryTree), rather than the name of the response from GraphQL
• a9f0ad8 uses that libraryTree from the component data (rather than the $apolloData handler which is still useful for getting at loading information)
• b255931 removes the computed property and just works off of the libraryTree data prop

I'll let you decide if you wan to take this further / explore with ApolloComponent, but I think this at least answers the question of "how does vue-apollo query syntax map onto what we've been doing so far?"