Add installation for buildah and bash completions
Add installation for buildah and bash completions

Closes: #15
Approved by: rhatdan

nalind/buildah-1,projectatomic/buildah,nalind/buildah-1,projectatomic/buildah,rhatdan/buildah,nalind/buildah,nalind/buildah-1,rhatdan/buildah,rhatdan/buildah,TomSweeneyRedHat/buildah,TomSweeneyRedHat/buildah,projectatomic/buildah,nalind/buildah,ipbabble/buildah,TomSweeneyRedHat/buildah,ipbabble/buildah