Corrections to architecture doc

Change-Id: I3b3a43ece073e9a7bacd981abe80bdd233236b4a
Settings tab multiple fixes

1) Make settings with same names in different groups work properly
2) Make settings groups without metadata work properly
3) Name variables in settings_tab.js according to their names in the template

Change-Id: I623eb226170f0dd77d87aaa2b31bc48b995fb2fd
Merge "Settings tab multiple fixes"
Development documentation on DB migrations

Closes-Bug: #1286126

Change-Id: I4b5c3f0bab0f670ff6be1e9af54250cf084b28f7
Merge "Development documentation on DB migrations"
Merge "Corrections to architecture doc"
Fix for lost checked node style

Change-Id: Ia9dd29edc2d9f1a63f2cb50d983d569addc3e95f
Dont spawn vlan-tagged ifaces on slave nodes with net check

To generate tagged traffic between fuel slave nodes
we dont need to create tagged interfaces.
Insteed we just can add 8021q tag with specified vlan.

In such case we can run net_check with 3000 vlans in 2 mins.
Tested on 2 nodes setup.

Also it makes possible to run net_check for neutron
with vlan type segmentation.

Change-Id: I638845a21067db954c4876aef19034b2317676ff
Enable network verification on neutron deployments

Current implementation correctly verifies connectivity
of underlay network, no matter what bridge is used on
target nodes.

It does not checks ovs or bonding functionality,
which i think should be addressed by another check.

Related to blueprint network-checker-neutron-vlan

Change-Id: I78e279b26c9477739d5dacaa61b39bd3c260b87c