Site initialization and reference creation overhauled
Removed :alias from attr_accessible
Committing atribute-deletion migration
Saving for return to pic able
Merge branch 'refs/heads/picable' into db_cleanup

Conflicts:
	app/services/site_services.rb
More attributes deleted
Defined affiliate search on url for References; moved Site#merge into SiteServices
Checking for impact of deleted attributes in User, Reference, Site and Recipe
Dropping thumbnails table
Going back for fucked-up database
Committing indexing migration
Committing table-trimming migration
Merge branch 'picable' into db_cleanup

Conflicts:
	app/models/recipe.rb
	app/models/site.rb
	app/services/site_services.rb
	db/schema.rb
Post-merge from picable
Test availability of url attribute before getting
First pass at fixing SiteServices#merge
Fixed SiteServices#merge
Eliminated redundant code in picable
Refactoring site access
Searching all urls of a recipe for its site