Changes for talking to treemachine. Trees from treemachine don't render correctly, but they are fetched.

Argus changes:  treemachine and taxomachine domains specified at init
    along with a boolean "useTreemachine"
Opentree webapp changes:
    temporary treeview controller and view so we can test the taxomachine interaction (at opentree/)
        and the treemachine interaction (at opentree/treeview )
    reading private/config to get domains
notes on the content of the JSON that Argus wants.
click handler for navigating trees from treemachine
Merge branch 'master' of github.com:OpenTreeOfLife/opentree