Restructure API
Merge branch 'release-0.4.2' of https://github.com/GraphAlchemist/Alchemy into API

Conflicts:
	app/scripts/alchemy/Alchemy.coffee.md
Chainable selections from different API categories
Can search on selections
Fix tests
Merge branch 'MDCox-API' into release-0.4.2
Merge branch 'release-0.4.2' of https://github.com/graphalchemist/alchemy into release-0.4.2