Sync zoneinfo database with tzdata2012c from munnari.oz.au

Sync zoneinfo database with tzdata2012c from munnari.oz.au

africa:         8.33 -> 8.35
asia:           8.70 -> 8.73
northamerica:   8.53 -> 8.54

* africa: Morocco 2012 DST from last Sunday in April through last
    Sunday in September.

* asia: Change start of DST in Syria to last Friday in March in
    2012 and (as a guess) forward. Starts and (guessed) ends of
    DST in West Bank and Gaza for 2012. Also add a missing HTML
    directive at the top of the file.

* northamerica: Start and end of DST in Haiti in 2012 according
    to US rules.