added version files
added urls module
fixed nailgun/urls.py
added fix to tests
added "fuel rel config"
changed eid's for env's everywhere
added some new arguments
added "fuel net"
download, upload and verify
fixed ui test error
Disable Verify button if verification starts
added settings functionality
download, upload and default
Merge pull request #1582 from Mirantis/prd-1827

Disable Verify button if verification starts
remove comments
Merge pull request #1576 from Mirantis/api-versioning-PRD-1601

Api versioning prototype (prd 1601)
Merge pull request #1583 from Mirantis/CLI-additional-functionality-PRD-1734

Cli additional functionality prd 1734
Group node configurations
Group configuration buttons
unavailable node group configurations
Fix for disks length calculation
Check for conflicts in disks configuration
add alert to configure button
Alert icon for group configuration conflicts