deal with grace / no grace in more explicit manner
no fname in __init__
fielsetname field is empty for fileset quota
add exceed_map to deal with per fileset exceed (e.g. in __str__)
fix bunch of problems; still fileset issue remaining
fix merge conflict resolve introduced error
only report filesets with exceeding quota
version bump
address remarks by @piojo
fix line break remark
Merge pull request #10 from stdweird/fix_dquota_crash_on_expired_quota

Fix dquota crash on expired quota