Fixed bulkedit:
- fix sn and barcode validation
- form valid only marked fields
- new error msg
error message when user did not select any device
fix bulkedit - deprecation kind field (mast by instance of Depreciation Kind)
fix relativedelta - input is always type datetime.date
Fix ValueError: Cannot assign "u'1'": "Device.margin_kind" must be a "MarginKind" instance ... etc ...
add test to bulkedit
Merge branch 'master' of git://github.com/allegro/ralph into dev
merge
Merge branch 'master' of git://github.com/allegro/ralph into dev
Merge branch 'master' of git://github.com/allegro/ralph into dev
Merge branch 'master' of git://github.com/allegro/ralph into dev
check if change from bulkedit save change in HistoryChange
remove sn, barcode form bulkedit form
add tests to many devices
Racks view - empty SN error - fix
merge
refactoring
refactor edit_fields_form
refactoring
refactor