fix minor ships transformed into gaballianer
make Kryolab more likely to be buildable

Not being able to build it happens rather often on small maps. Looking
at other races, they don't seem to have such preconditions for an
important +moral building.
Adjusted planet types to suitable ones (kryogenetics ~= science of
coping with icy temperatures by genetic modifications). Due to C
in Terra, Kryolab is guaranteed to be buildable (not recommended for
Terra though).
fix replicator not taken online for negative food prod