comment out mongo seeding
maintenance page
production config - new db
dont show mainteance to swirrl
data server loc
Generate basic JSON data for tree visualisation.
Add livereload/guard to speed up development workflow for javascript
etc.

To make use of this workflow first run:

$ bundle exec guard

This will set guard watching for filesystem changes.

Next open a browser pointing at the app, whenever you make changes to
javascript/(s)css files etc the page will automatically pick up the
changes.
Start work on the javascript for the treeviewer.
Tree vis now does the following:

- grouping of organisations by type
- colouring of orgs by type (though this will probably be removed)
- adjusted node layout to space evenly regardless of number of children
- sizing organisation dots by number of staff
- hacky svg:title tooltips on mouse over (to be replaced by better ones)

TODO

- support multiple links to a node (currently nodes are replicated)
- proper tooltips as per wireframe
- legend
Merge branch 'master' into tree-vis

Conflicts:
	app/controllers/application_controller.rb
	config/environments/development_example.rb
Change tree vis sizing metric from orgSize to number of activities.
Add multiple parent support to tree vis.
Add tree vis to activity pages too.
Remove placeholder mockup graphic from source.
Basic responsive behaviour.
make activities grey.
Apply colouring to lines based on activity type, some variations are
commented out.
Start of tooltips.
Basic popups in place.
Better on-brand styling for popups.