Fix compilation issues related to splitting to packages Signed-off-by: Kakadu <Kakadu@pm.me>

Changes for 0.3.0-alpha1 Signed-off-by: Kakadu <Kakadu@pm.me>

Thursday workout with Danya 

Distribution 0.2.0 

Upgrade Opam files Signed-off-by: Kakadu <Kakadu@pm.me>

fix regression tests