LU-4017 tune2fs: fix BUGs of tuning project quota

LU-4017 tune2fs: fix BUGs of tuning project quota

There are several problems for project quota enable/disable:
tune2fs -O ^project did not work, because @clear_ok_features
did not include @EXT4_FEATURE_RO_COMPAT_PROJECT.

update_feature_set() works for -O option, but tune2fs -Q prj/^prj
did not work well, because function handle_quota_options()
did not set and clear @EXT4_FEATURE_RO_COMPAT_PROJECT feature very well.

Change-Id: I85a3d504c3619b219af8a711f8f9a3d22b9715db
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Reviewed-on: https://review.whamcloud.com/26581
Tested-by: Jenkins
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>