Prepare for next development iteration

Change-Id: I9a2e8ca5b7344e365b0fb71cf690c27836b120f3
Update kms-core-dev dependencies

Change-Id: I8f12dbcd0bd4e7873debfd6b214afb32a69aef60
Prepare release 5.0.3

Change-Id: I1f6312d482c93bcefb4fb5ce100f824a039215ac