[fix] fs aspect primaryGroup corrected, and now handle single-valued relation data, and btw disallow adding the same value multiple times
[fix] code cleanup and a few fixes
[evol] improved 'list' command
[evol] the 'list' command now display the number of items
[evol] move display options out of object management into the display functions, and display binary field presence
[evol] code cleanup
[evol] code cleanup, and allowed pluralized version of object name in 'list' command