CLOUDSTACK-4378 : Fixing the typo in Apache License Text

Signed-off-by: venkataswamybabu budumuru <venkataswamybabu.budumuru@citrix.com>
CLOUDSTACK-4452: Fix the mount format to host:dir

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit eabd53b9719fe38b933efe1169c420c88ad5ecf5)
CLOUDSTACK-4303: Add missing base.py changes

egressdefaultpolicy parameter was not set in base.py. Therefore
egress test failed. Added this missing change.

Signed-off-by: Jayapal <jayapal@apache.org>