make folders POSIX style and move skills to hud

assets/voxygen/i18n/nl_NL/_manifest.ron

@@ -12,11 +12,11 @@
 ///
 /// WARNING: Localization files shall be saved in UTF-8 format without BOM
 
-/// Localization for "global" English
+/// Localization for netherlands Dutch
 (
     metadata: (
         language_name: "Nederlands",
-        language_identifier: "nl",
+        language_identifier: "nl_NL",
     ),
     convert_utf8_to_ascii: false,
     fonts: {

assets/voxygen/i18n/pl_PL/_manifest.ron

@@ -2,7 +2,7 @@
 (
     metadata: (
         language_name: "Polish",
-        language_identifier: "PL",
+        language_identifier: "pl_PL",
     ),
     convert_utf8_to_ascii: false,
     fonts: {

assets/voxygen/i18n/sv_SE/_manifest.ron

@@ -1,10 +1,10 @@
 /// WARNING: Localization files shall be saved in UTF-8 format without BOM
 
-/// Localization for "global" Swedish
+/// Localization for sweden Swedish
 (
     metadata: (
         language_name: "Svenska",
-        language_identifier: "sv",
+        language_identifier: "sv_SE",
     ),
     convert_utf8_to_ascii: false,
     fonts: {