a compound can be marked as a favourite. use html5 localstorage to keep
track. use font-awesome star icon rather than bootstrap so we can
resize, change colour etc.
use the html5 indexeddb spec to store what compounds are favourites
remove extra brackets
latest ember.
indexeddb changes
move the db logic to the app controller
check if a compound is a favourite when it first loads
move and resize the favourite star
Fetch disease count on target page and display the number if non zero
Disease model, controller, routes, store & index
list of disease classes with link to source uri
diseases for target route, controller, template
link to disease from target
link to the original target
Merge branch 'develop' into ian_diseases_for_target

Conflicts:
	app/assets/javascripts/templates/targets/index.hbs
Merge branch 'develop' into ian_indexeddb_for_favourites

Conflicts:
	Gemfile
	app/assets/javascripts/application.js
	app/assets/javascripts/models/compound.js
	app/assets/javascripts/templates/compounds/index.hbs
	app/assets/javascripts/templates/targets/pharmacology.hbs
	app/assets/stylesheets/application.css.scss
	app/assets/stylesheets/explorer.css
Find amatching URI for this favourite in the db on initial load
Remove async side effects of db calls.
Favourite targets
List of all favourites
favourites in a table
favourites in tabs