Revised 'info' to be the 'credits' drawer; replaced whatever-that-icon-is-supposed-to-be with the 'i' icon for the information drawer; added help-topic and play-topic directives
oopsie, forgot to add directives for help and play topics
Merge branch 'master' of github.com:neo4j/neo4j-browser

Conflicts:
	app/views/partials/nav.jade