"Usability" doc and resolved Github issues

All,

The "usability" doc (using this term for consistency in our communications,
even though it's not the technically correct term for the doc content) is
ready for review. I'll share the link in our meeting tomorrow as well.

Usability Doc for review
<https://docs.google.com/document/d/1Wrhomdc2gJWIkDPOveiH3_ig1bddTMonEhIDZIzohrc/edit?usp=sharing>
Final comments are due by April 17th.

I think the updates in this doc resolve the following Github issues:
43
78
85
89
108
113
115
116
117
122
123
127
132
154
158
161
162
180
181

The doc might resolve the following issues (I would need someone else's
input to confirm):
110
111
138

There are some longer-tail Github issues to discuss for future updates:
91
137
155
156

I think issue 119 was resolved already, I can't find the associated content
in the doc.

And finally, there are some issues for procurement that I think we might
need to assign to Jeff (as he has time):
81
148
157

All other issues in Git that aren't listed here seemed unrelated to the
document I was working on, so I didn't review them.

Whew! That was a lot of stuff.


Cheers,
Stacey