Log Message:
py-numexpr: updated to 2.6.7

Changes from 2.6.6 to 2.6.7
* Thanks to Lehman Garrison for finding and fixing a bug that exhibited memory \ 
leak-like behavior. The use in numexpr.evaluate of sys._getframe combined with \ 
.f_locals from that frame object results an extra refcount on objects in the \ 
frame that calls numexpr.evaluate, and not evaluate’s frame. So if the calling \ 
frame remains in scope for a long time (such as a procedural script where \ 
numexpr is called from the base frame) garbage collection would never occur.
* Imports for the numexpr.test submodule were made lazy in the numexpr module.