automatically guess the Debian-installer's kernel version

Change-Id: Id64197ce49bc7704e091533c85e83e6ae9d19875
Related-bug: #1383641
Check for 'sahara-all' instead of 'sahara-api'

Since Juno we should check for 'sahara-all' in system tests.

Change-Id: I5c80aaaf87fc7a2d474619c90598a9b68b37edbe
Closes-bug: #1388775
More timesync tries after snapshot is reverted

Currently only 3 tries are performed with 30 sec timeout,
but it is not enough in certain situations for time sync.

Change-Id: I460f86ebbf59f32c9288889eb76bdc9a472d4a07
Closes-Bug: #1388212
Merge "automatically guess the Debian-installer's kernel version"
Merge "More timesync tries after snapshot is reverted"
Revert "More timesync tries after snapshot is reverted"

Failed to build ISO with this commit:
http://jenkins-product.srt.mirantis.net:8080/view/6.0/job/6.0.iso/71/console

This reverts commit 12f7e144ada6221907d3a50ce048720c5d367035.

Change-Id: I1bcc6540de79d7683e144c46c3b8dcc47359364e
Merge "Revert "More timesync tries after snapshot is reverted""
Revert "automatically guess the Debian-installer's kernel version"

Failed to build ISO with this commit:
http://jenkins-product.srt.mirantis.net:8080/view/6.0/job/6.0.iso/71/console

This reverts commit 41d9e60a6c347021ed8db18a637902ca524d020d.

Change-Id: Iad63c6b36e32abeb7923e205396459acc049c10b
Merge "Revert "automatically guess the Debian-installer's kernel version""
More timesync tries after snapshot is reverted

Currently only 3 tries are performed with 30 sec timeout,
but it is not enough in certain situations for time sync.

Change-Id: I8739cdd0d92f6daca8d8415cb806c0ea7c2f7883
Closes-Bug: #1388212
Add os_conn initialization after reset and
re-deploy environment

Change-Id: I0719c3991c22ce662619b4a63066298dfcb14f27
Closes-Bug: #1388902
Fix simple_flat_add_compute test

-Remove verify_node_service_list check from test
-Remove verify_node_service_list method from environment.py

Change-Id: I6241e1fdbbca57f069cced3afe6cf993689be0f2
Closes-Bug: #1388836
Merge "Add os_conn initialization after reset and re-deploy environment"