Remove required=True from username and password
Add factory.py containing common functionality
Merge remote-tracking branch 'upstream/master'
Merge pull request #74 from mrniranjan/master

Add new factory.py containing Paramiko SSHClient
remove username and password as they are now part of factory.py

Signed-off-by: Gowrishankar Rajaiyan <gsr@redhat.com>
Merge pull request #75 from gsr-shanks/dev

Dev