cluster/afr: Add special handling for failure postops

Idea is to not leave the file in FOOL-FOOL scenario in case on
all the bricks data transaction failed with EDQUOT to avoid
increasing un-necessary load of self-heals in the system.

For directory transactions don't leave pending changelog in case
the failures are seen on all the subvolumes.

Change-Id: I38a5561d1d581a78347a76a4a509514e4a0c3fb7
BUG: 969461
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/5709
Reviewed-by: Anand Avati <avati@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>