The commands selfListAccesses, accountListAccesses,
groupList, groupListServers, groupListGuestAccesses and
accountList now have options to filter their output through
pattern matching, with --include and --exclude.
The output from the commands using print_acls() is also more
human-friendly, with auto-adjusting column length, and empty
columns omitted.
Closes#60.
We now warn (to syslog) for invalid values where
we have to fallback to defaults, and for boolean
options, actual true/false JSON values are now
properly recognized. 0 and 1 will still always
be parsed correctly, to not break compatibility.
