added appropriate exception handling flag to ext\intl

According to the doc page
http://msdn.microsoft.com/en-us/library/1deeycx5.aspx
it's appropriate as none of the extern C functions do throw
exceptions. This also fixes the warning C4530.

Author: weltling

ext/intl/config.w32

@@ -118,6 +118,7 @@ if (PHP_INTL != "no") {
 				"intl");
 
 		ADD_FLAG("LIBS_INTL", "icudt.lib icuin.lib icuio.lib icule.lib iculx.lib");
+		ADD_FLAG("CFLAGS_INTL", "/EHsc");
 		AC_DEFINE("HAVE_INTL", 1, "Internationalization support enabled");
 	} else {
 		WARNING("intl not enabled; libraries and/or headers not found");