Log Message:
Update pear-Date to 1.4.7. Changes since 1.4.3:

1.4.7:
* Fix bug #8912: putenv() causes crashes in DateTimeZone::inDaylightTime() under \ 
windows
* Fix bug #9409: Date_Calc, fatal error using a non-array variable as an array
* Fix bug #9414: Date::addSeconds() fails to work properly with negative numbers
* Many cosmetics update
* Moved bug test files to tests/bugs/
* Removed unused files

1.4.6:
- Change license from PHP License to new BSD License
- Bug #5715 fypo, missing s in $GLOBALS

1.4.5:
Same code base as 1.4.4-beta
See 1.4.4 changelog for details

1.4.4:
- Establish the DATE_CALC_FORMAT constant and use it as the default value
  for each of the Date_Calc class' method's $format parameter.
- Add beginOfMonthBySpan() and endOfMonthBySpan() methods to Date_Calc.
- Use integers for the parameters in Date_Calc instead of strings.
- Tweak Date_Calc::NWeekdayOfMonth() so it can calculate the 'last'
  given weekday of a month.
- #1640. Make sure all longname's are also keys in
  $GLOBALS['_DATE_TIMEZONE_DATA']. Makes Date_TimeZone work under more
  operating systems.
- #5420, missing CEST
- #3846, getYear, getMonth returns integer
- #2652, add %h and %i support (rob at wildlime dot com
- #5494, force dot as decimal separator
- #3022, allow to specify the weekday abbrevation length used in ::format()
- #4878, %s padding fix when < 10 ( aashley at optimiser dot com)
- #3059, use GLOBALS in date_span

PR: 36211 by Loic Hoguin