Merge pull request arminc#34 from arminc/2.0.8

Use clair 2.0.8

Merge pull request arminc#21 from arminc/update-clair-2.0.6

Update Clair to 2.0.6

Merge pull request arminc#18 from jbergstroem/bump/clair-v2.0.5

Update to Clair v2.0.5

Merge pull request arminc#14 from ovotech/v2.0.4

Upgrade to clair v2.0.4

Merge pull request arminc#11 from usr42/db_postgres_10.4-alpine

Upgrade db base image to postgres:10.4-alpine

Merge pull request arminc#6 from usr42/fix_clair-db_cvs

Fix 10 CVEs in arminc/clair-db

Update .travis.yml

Mistake in command

Add scanning to readme