added support_id and filter for price>0 to scrooge supports api
[accessories] fix verbose names in admin.
Merge pull request #538 from xor-xor/accessory_verbose

[accessories] fix verbose names in admin.
Fix for 'slot_no' field that should be a string, not integer.
fixed strange random test
set verbosity
Merge pull request #541 from ar4s/fixed-random-test-on-travis

Fixed strange random test
Merge pull request #540 from xor-xor/slot_no

Fix for 'slot_no' field that should be a string, not integer.
Merge pull request #536 from mkurek/feature/scrooge-api-supports

added support_id and filter for price>0 to scrooge supports api
changed API (adapted for core visualization)
Merge pull request #542 from ar4s/dc-view-additional-info

Changed API (adapted for core visualization)
fixed error silencing
added new default accessory
Merge pull request #546 from xliiv/feature/autenti-update

Fixed error silencing.
changed API for visualization blade chassis
Added constraint slot_no cant be set when asset is no blade + tests
Merge pull request #539 from xliiv/block-slotno

block slot_no if asset not blade
Merge pull request #545 from ar4s/fixtures-added-power-socket

Added new default accessory
Merge pull request #544 from ar4s/visualization-blade-chassis

Changed API for visualization blade chassis
added build matrix