file rename
moved road map to README.md
move unitizer loading to 'unitizer_load'
thinking through how to implement 'review'
wrapping long lines
added nested section details
version bump
implementing unitizer review, not working
rationalizing passed tests for unitize/review

Trying to re-use same logic for both unitize and review, which
means we need to handle passed tests differently
review/unitize migration complete, but untested
doc updates
removed unneeded file
added load/store tests
missing comma
added 'passed' to browseSection valid levels
character representation of browsing struct updated

Inclusion of passed tests changed numbering
moved reference section copying to function
reference sections now tracked properly
added upgrade to 0.5.2
upgrade spans multiple generations properly