Description of problem:
According to multiple sources, Morroco recently announced they were restoring DST. the summer time rule is correct, but the winter rule is not ; sources listed in the additional info state that winter time resumes at midnight between saturday and sunday whereas our rules resume it between sunday and monday at midnight

Version-Release number of selected component (if applicable):
latest version of tzdata

How reproducible:
always

Steps to Reproduce:
1.zdump -v Africa/Casablanca | grep 2011 | tail -n 2
2.
3.
  
Actual results:
    Africa/Casablanca  Sun Jul 31 22:59:59 2011 UTC = Sun Jul 31 23:59:59 2011 WEST isdst=1 gmtoff=3600
    Africa/Casablanca  Sun Jul 31 23:00:00 2011 UTC = Sun Jul 31 23:00:00 2011 WET isdst=0 gmtoff=0

Expected results:
    Africa/Casablanca  Sat Jul 30 22:59:59 2011 UTC = Sat Jul 30 23:59:59 2011 WEST isdst=1 gmtoff=3600
    Africa/Casablanca  Sat Jul 30 23:00:00 2011 UTC = Sat Jul 30 23:00:00 2011 WET isdst=0 gmtoff=0


Additional info:
this is a continuation of the bz#692031 ; the websites are 

    - http://www.timeanddate.com/worldclock/timezone.html?n=60
    - http://24timezones.com/world_directory/current_casablanca_time.php

wikipedia has also been updated, but the governmental webpage doesn't display properly : 

    http://www.map.ma/fr/sections/accueil/l_heure_legale_au_ma/view
    http://en.wikipedia.org/wiki/Daylight_saving_time_around_the_world#Morocco