fix uninitialized constant errors
fix uninitialized constant errors

c extension needs stringio and date required first in order to find
those constants.

kou/ffi-yajl,chef/ffi-yajl,h4ck3rm1k3/ffi-yajl,h4ck3rm1k3/ffi-yajl,chef/ffi-yajl,kou/ffi-yajl,chef/ffi-yajl,h4ck3rm1k3/ffi-yajl,kou/ffi-yajl