scripts: add new email aliases

Two developers started to use new email addresses, marking them as
aliases. Also assign @gmail.com addresses to the "(unknown)" employer.

Change-Id: Ic5722c1611b003182c0288ba530d6ab275c2ca1b
BUG: 1087771
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/7484
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>