Add contact data for the new port maintainers

New port maintainers have been announced. These should be included in
the MAINTAINERS file. Also include some corrections and add missing status
tags.

URL: http://supercolony.gluster.org/pipermail/gluster-devel/2014-June/041223.html
Change-Id: I0729c0ea5fec8a645f18543915c0c0c3fce34329
BUG: 1040351
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/8188
Reviewed-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
performance/md-cache: Guard against null dict

BUG: 1114677
Change-Id: Ica4f4ad97d7d1edc3e48e7f1a6ec70b14acffc66
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/8205
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>