dict anymore if the key is present. Reject also non-string qualified names.
And fix reference leaks in type.__new__().

str.title(). Compute correctly how much memory is required for the test
(memuse).

 * Decode thousands separator and decimal point using PyUnicode_DecodeLocale()
   (from the locale encoding), instead of decoding them implicitly from latin1
 * Remove _PyUnicode_InsertThousandsGroupingLocale(), it was not used
 * Change _PyUnicode_InsertThousandsGrouping() API to return the maximum
   character if unicode is NULL
 * Replace MIN/MAX macros by Py_MIN/Py_MAX
 * stringlib/undef.h undefines STRINGLIB_IS_UNICODE
 * stringlib/localeutil.h only supports Unicode

logging: Added locking in flush() and close() handler methods. Thanks to Fayaz Yusuf Khan for the suggestion.