Store more remote logs in diagnostic snapshot

[Dmitry Pyzhov]

Copied from bug #1318514:

logs from slave nodes seems to be stored in 'docker-logs/remote' directory. However, files that could be found there is not enough. At the moment there are only 4 files (bootstrap):
* agent.log
* dmesg.log
* mcollective.log
* messages.log

It's not enough, need at least the following files to be added:
* auth.log
* syslog

An output of command 'ps axjf' also should be logged to show the processes running on the node.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/270186

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/270187

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/270187
Committed: https://git.openstack.org/cgit/openstack/fuel-agent/commit/?id=6f89f8b76545847d8de2a7ab5651e7d3df27845f
Submitter: Jenkins
Branch: master

commit 6f89f8b76545847d8de2a7ab5651e7d3df27845f
Author: Valentin Kaplov <email address hidden>
Date: Wed Jan 20 16:36:05 2016 +0300

    Send to master 'auth.log' and 'syslog'

    auth.log => remote /var/log/auth.log
    syslog => remote /var/log/syslog

    Change-Id: Iff8a11ac6029941d7d2d6d8a102932fc7f858eb1
    Closes-Bug: #1534092

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/270186
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=30a59f1d76e44ab6f76483443b8d5ad0f931b16c
Submitter: Jenkins
Branch: master

commit 30a59f1d76e44ab6f76483443b8d5ad0f931b16c
Author: Valentin Kaplov <email address hidden>
Date: Wed Jan 20 16:29:17 2016 +0300

    Add 'auth.log' and 'syslog' to Web UI bootstrap logs.

    auth.log => remote /var/log/auth.log
    syslog => remote /var/log/syslog

    Change-Id: I8f97094b92ec08d3cab8e7b384556ec2db9d35fb
    Related-Bug: #1534092

[Nastya Urlapova (aurlapova)]

https://product-ci.infra.mirantis.net/job/9.0.main.ubuntu.bvt_2/455/artifact/logs/pass_ceph_rados_gw-fuel-snapshot-2016-06-19_03-33-52.tar.gz

-rw-r--r-- 1 alan alan 32684 Jun 19 06:34 agent.log
-rw-r--r-- 1 alan alan 4743 Jun 19 06:34 auth.log
-rw-r--r-- 1 alan alan 521931 Jun 19 06:34 syslog.log