Added fix for CLOUDSTACK-6529

Fixed to continue adding all hosts, even if any addition fails and remove
unused args from host class.

Signed-off-by: santhosh <santhosh.edukulla@gmail.com>
Signed-off-by: Abhinandan Prateek <aprateek@apache.org>
CLOUDSTACK-6758: [Marvin] Detect failed job and throw exception

Signed-off-by: Abhinandan Prateek <aprateek@apache.org>
Fixed issues in regression suite project cpu limits

Signed-off-by: Abhinandan Prateek <aprateek@apache.org>