add (failing) tests for homepage view toggle
show buttons on homepage to toggle dataset display style - default to tile view
basic rendering of datasets in a list
save datasetDisplay preference in user model
remove empty line
put dataset list rows in their own template
you can now delete datasets in list view, just like you can in tile view
merge in page title changes from master
Merge pull request #464 from scraperwiki/20131203-dashboard-view

New Google-Drive-like tabular display mode for home page