Partially working
Import assets with office_info
No longer validating for missing fields if updating assets
Flaked
Removed unneeded method
Corrected mistakes
Fixed some problems with licence import
Merge pull request #156 from zefciu/RBM-70

Implemented import of officeinfo/deviceinfo
Merge pull request #161 from zefciu/hotfix-licence-import

Fixed some problems with licence import
Merge branch 'develop' into fieldsets
change default value in backward migration for source
added 'owner' field, reused asset_fieldset instead of defining, added slots to DC
fixed adding part