Fixed default language.

The GUI was appearing in French if the display language was set to
anything other than English.  Ensure English is the default language by
defining the English resources as English US not English UK.

Spotted by Emilio Frini but apologies must go to François-Régis Tardy
who included the change along with his translations.  I didn't apply it
because I didn't realise that things wouldn't work without it.

nssm.rc

@@ -17,7 +17,7 @@
 
 #if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENG)
 #ifdef _WIN32
-LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_UK
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 #pragma code_page(1252)
 #endif //_WIN32
 
@@ -62,6 +62,7 @@ IDI_NSSM                ICON                    "nssm.ico"
 IDD_INSTALL DIALOG  0, 0, 220, 90
 STYLE DS_SETFONT | DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
 CAPTION "NSSM service installer"
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 FONT 8, "MS Sans Serif"
 BEGIN
     DEFPUSHBUTTON   "Install service",IDC_OK,55,69,50,14