- MF4.3: Cleaned up some of the locale mess:

- MF4.3: Cleaned up some of the locale mess:
  * all internal use of sprintf, snprintf and the like will always
    use the . as thousands seperator (if php.h is included only!).
  * echo, printf() and sprintf() always render locale-aware
  * added the %F modifier for non-locale aware rendering for floats