5722 Update timezone info db to 2015a

@@ -272,11 +272,11 @@
 MT      +3554+01431     Europe/Malta
 MU      -2010+05730     Indian/Mauritius
 MV      +0410+07330     Indian/Maldives
 MW      -1547+03500     Africa/Blantyre
 MX      +1924-09909     America/Mexico_City     Central Time - most locations
-MX      +2105-08646     America/Cancun  Central Time - Quintana Roo
+MX      +2105-08646     America/Cancun  Eastern Standard Time - Quintana Roo
 MX      +2058-08937     America/Merida  Central Time - Campeche, Yucatan
 MX      +2540-10019     America/Monterrey       Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas away from US border
 MX      +2550-09730     America/Matamoros       US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border
 MX      +2313-10625     America/Mazatlan        Mountain Time - S Baja, Nayarit, Sinaloa
 MX      +2838-10605     America/Chihuahua       Mexican Mountain Time - Chihuahua away from US border

@@ -305,11 +305,12 @@
 PA      +0858-07932     America/Panama
 PE      -1203-07703     America/Lima
 PF      -1732-14934     Pacific/Tahiti  Society Islands
 PF      -0900-13930     Pacific/Marquesas       Marquesas Islands
 PF      -2308-13457     Pacific/Gambier Gambier Islands
-PG      -0930+14710     Pacific/Port_Moresby
+PG      -0930+14710     Pacific/Port_Moresby    most locations
+PG      -0613+15534     Pacific/Bougainville    Bougainville
 PH      +1435+12100     Asia/Manila
 PK      +2452+06703     Asia/Karachi
 PL      +5215+02100     Europe/Warsaw
 PM      +4703-05620     America/Miquelon
 PN      -2504-13005     Pacific/Pitcairn