factor out 'deleting' a dataset into the Dataset model
playing around with already installed tools
convert view as table archetype to a normal tile on click if already installing
merge, more playing
Merge branch 'master' into 20130806-1-tool-spike
set active tool properly
Merge branch 'master' of github.com:scraperwiki/custard
add test for checking we can't install a tool on dataset twice
add myself to fixtures, so ident test works...
fix tool_rpc integration test