Bug 423715 - Encapsulate checks performed during MD5Verifier creation

As a side-effect, this decouples RawMirrorRequest and
SimpleArtifactRepository from MD5Verifier.

Change-Id: I8e5f50a3fd6b21006a42e115858d98aa07f90df5
Signed-off-by: Mykola Nikishov <mn@mn.com.ua>
3 files changed