moved sn validation to validators & added max_length=200 check on single sn
skipping empty sn & fixed test message
MultilineField used on sn in add part|device
rewritten sn, barcode, imei in 'add device|part' form to new MultilineField
Merge branch 'develop' of https://github.com/allegro/ralph_assets into unlimited-multi
better docstring in validate_snbcs
working refactored 'edit device' view (dirty version)
code cleanups & updated tests
Merge branch 'develop' into device-info-bo
indention fixes & better block name for tables
fixes after review
added mode specific data saved in add-device view & code cleanups
rm commented useless lines from tests
Merge branch 'develop' into device-info-bo
indent fix
Merge pull request #204 from xliiv/device-info-bo

cleaning add|edit-device views
fixed highlighting license item in mainmenu
Merge branch 'develop' into mainmenu-fix

Conflicts:
	src/ralph_assets/views.py
Moved default settings to separate file
Merge pull request #214 from xliiv/mainmenu-fix

Fixed Mainmenu higlighting for License