use python-style objects for summaries
start to use class inheritance for summary modes
break up long line
use classes more
add blank line
more inheritance
break up long fn
reorder funcs
break up long fn
move more into OO style
factor out common lines
inline unneeded fn
remove support for None summary mode
remove support for None summary mode
remove unused fn
fix mangled test case
add new pkg
fix discrepancy in minimal packages list
add another guard against incomplete surveys
use mutable data