added *manufacturer* field to license's search form & rm unused template
rm AssetManufacturer lookup & replaced with ManufacturerLookup
Merge branch 'develop' into manusearch

Conflicts:
	src/ralph_assets/tests/functional/tests_search.py
added flake8-debugger to travis
Merge branch 'develop' into manusearch
rm flake8-debugger
Merge pull request #369 from xliiv/manusearch

Filter manufactureres in license.