add loan end date to transactions actions:
Merge branch 'develop' of https://github.com/allegro/ralph_assets into loan_transition
Add Licence history models and handling save history
Add Licence history view
Add Licence history migration
Merge branch 'develop' of https://github.com/allegro/ralph_assets into licence-history

Conflicts:
	src/ralph_assets/views_sam.py
Assets reports is default disabled
Merge branch 'develop' of https://github.com/allegro/ralph_assets into licence-history
Fix import
sn or barcode required
Merge branch 'develop' into sn-or-barcode
fixed sn or barcode loop in view
Merge pull request #216 from xliiv/sn-or-barcode

Optional *sn* when *barcode* filled
Change Asset bulk edit fields list
Fix bulk edit -  barcode IntegrityError
Show barcode on bulk edit form
Review fixes
Fix tests functional - remove unused BulkEdit field
Saving multiple licences implemented
Merge pull request #218 from kubked/sn-or-barcode-review

SN or barcode review fixes