decomposers and recomposers can have alternative riftdescriptors
a decomposer is contravariant
recomposers type parameter constrained to T <: AnyRef
fixed recomposer regitry which registered all recomposers as rawrecomposers
recomposers can divert, too
improved serielization of standard almhirt types
pushed version to 0.0.53
improved error message
micro container