[pydgin] pypy 2.5.1 compatibility
[pydgin] pypy 2.5.1 compatibility

2.5.1 complains that @elidable and @unroll_safe cannot be used at the same
time (because @elidable doesn't execute the functions)

futurecore/pydgin,cornell-brg/pydgin,moreati/pydgin,futurecore/pydgin,moreati/pydgin,cornell-brg/pydgin,moreati/pydgin,moreati/pydgin,cornell-brg/pydgin,cornell-brg/pydgin,futurecore/pydgin,futurecore/pydgin