features/quota: update quota-limit stored in directory contexts after reconfigure.
features/quota: update quota-limit stored in directory contexts after reconfigure.

Signed-off-by: Raghavendra G <raghavendra@gluster.com>
Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 2604 (Quota: crossing the set limit)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2604

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster