Add initial release notes for 2.0.0
Add initial release notes for 2.0.0

mizdebsk/xmvn,rvais/xmvn,mizdebsk/xmvn,rvais/xmvn,mizdebsk/xmvn,rvais/xmvn,fedora-java/xmvn,rvais/xmvn,fedora-java/xmvn,fedora-java/xmvn,mizdebsk/xmvn