System tests script
Refactoring of system_tests
Fix nailgun agent log file name

Fixes: #PRD-814

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Some refactoring again
Fix tests path
yumdownloader workarounds
Fix for vlan end calculation
fixed discovering problem and tests
fixed discover value check
3 tests fixed for discoverability
Fix UI tests
added test_node_update_with_discover test
fixed test, and error reporting
warning instead of info logger message
NodeCollectionHandler@POST on 176
Fix bugs
Up astute for multiroles
Some minor fixes
Use astute/run_tests.sh
Merge pull request #1447 from dmitryilyin/system_tests

System tests
fuel CLI prototype.
action handlers - stubs
main action/args tree - 80% complete