Overhauled the directory significantly. You can now browse by person's name or by group. People are not nested under groups, they are under /page/people/person-name, since people are often in multiple groups and choosing their "best" group is not a portable concept between clients or even desired by many clients. You can set whether the default view is by person or by group. If you lock a page down to just one group, it automatically does not show that toggle but just skips to displaying the people as you have presumably put this page in a context where it is already clear you're talking about "biologists," for example - something like:

/departments/biology/faculty <-- this is a directory page locked to the biology group
Merge branch 'master' of github.com:punkave/apostrophe-groups

Conflicts:
	index.js