added fields device_environment & service, rest in prog. ..
[WIP] Sync field with Ralph Assets
added *service* & *device_environment* fields working and dirty version
moved ralph things to ralph (inc. RestrictedLookupChannel)
changed labels for *device environment* & *service catalog* & code cleanups
[WIP] Small fix for tests (different ralph_device_id).
changed ralph branch to 'synergy' in travis file
review fixes
Merge pull request #378 from xliiv/ser-env-fields

service & environment fields
Merge branch 'synergy' of github.com:allegro/ralph_assets into feature/double-save-fields
added fields *environment* & *service catalog* to (BO|DC)add form
Merge branch 'synergy' into ser-env-fields
Merge pull request #380 from xliiv/ser-env-fields

added fields *environment* & *service catalog*
Add tests for SyncedMixin in Assets
Flake8 fix
Merge branch 'synergy' of github.com:allegro/ralph_assets into feature/double-save-fields
Change implementation synced obj and fields
Merge remote-tracking branch 'allegro/synergy' into synergy
Merge pull request #381 from quamilek/feature/double-save-fields

Feature/double save fields
api_ralph - get_asset_by_sn_or_barcode method added