Edge id documentation
Enhance doc navbar interaction

fixes #358
Merge branch 'release-0.2.1' of https://github.com/GraphAlchemist/Alchemy into v0.2.1

Conflicts:
	site/app/docs/js/coffee/docs.coffee
Merge pull request #369 from MDCox/v0.2.1

Final 0.2.1 documentation tweaks