[Numpy-discussion] String (and unicode) comparisons and per-thread error handling fixed

String comparisons were added last week. Today, I added per-thread error handling to NumPy. There is 1 more enhancement (scalar math) prior to 0.9.8 release --- but it will probably take 1-2 weeks. The new error handling means that the three-scope system is gone. Now, there is only one per-Python-thread global scope for error handling. If you change the error handling it will affect all ufuncs. Because of this, the seterr function now returns an object with the old error-handling information. This object must be passed to umath.seterrobj() in order to restore the error handling. -Travis