A polymorphic DeepCopy for Go using reflection.
USERS BEWARE! This fix is held together by chewing gum and wire. In particular, there is a heisenbug that triggers if the copious amounts of debug-prints are removed. You've been warned.
It is a fork of
code.google.com/r/jeffallen-fixes/exp/deepcopy
which in turn is a clone of
code.google.com/p/rog-go/exp/deepcopy,
but updated for the recent api changes to unsafe and reflection.
It is by transitivity licensed under the BSD 3-clause license.