Add new countries from Maxmind's geoipdb

installer/resources/countries.txt

@@ -37,6 +37,7 @@ BW,Botswana
 BY,Belarus
 BZ,Belize
 CA,Canada
+CC,Cocos (Keeling) Islands
 CD,The Democratic Republic of the Congo
 CF,Central African Republic
 CG,Congo
@@ -48,9 +49,9 @@ CM,Cameroon
 CN,China
 CO,Colombia
 CR,Costa Rica
-CS,Serbia and Montenegro
 CU,Cuba
 CV,Cape Verde
+CX,Christmas Island
 CY,Cyprus
 CZ,Czech Republic
 DE,Germany
@@ -62,6 +63,7 @@ DZ,Algeria
 EC,Ecuador
 EE,Estonia
 EG,Egypt
+EH,Western Sahara
 ER,Eritrea
 ES,Spain
 ET,Ethiopia
@@ -77,6 +79,7 @@ GB,United Kingdom
 GD,Grenada
 GE,Georgia
 GF,French Guiana
+GG,Guernsey
 GH,Ghana
 GI,Gibraltar
 GL,Greenland
@@ -115,6 +118,7 @@ KH,Cambodia
 KI,Kiribati
 KM,Comoros
 KN,Saint Kitts and Nevis
+KP,The Democratic People's Republic of Korea
 KR,Republic of Korea
 KW,Kuwait
 KY,Cayman Islands
@@ -191,7 +195,9 @@ SC,Seychelles
 SD,Sudan
 SE,Sweden
 SG,Singapore
+SH,Saint Helena
 SI,Slovenia
+SJ,Svalbard and Jan Mayen
 SK,Slovakia
 SL,Sierra Leone
 SM,San Marino