fixed missing value for 'source' filed in bulkedit
added test checking if DC's bulkedit data are set according to asset's data
Merge branch 'develop' into source-in-bulk
added test_showing_bo_form_data, create_bo_asset(..) & fixed url name
added and used _test_showing_form_data
rm blank line from file ending
review fixes
Merge pull request #279 from xliiv/source-in-bulk

Source field in bulkedit