updated libvorbis to 1.3.4 and libogg to 1.3.1

jni/libvorbis-1.3.4/macos/compat/strdup.c

@@ -0,0 +1,21 @@
+#include <ogg/os_types.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+
+char *strdup(const char *inStr)
+{
+        char *outStr = NULL;
+        
+        if (inStr == NULL) {
+                return NULL;
+        }
+        
+        outStr = _ogg_malloc(strlen(inStr) + 1);
+        
+        if (outStr != NULL) {
+                strcpy(outStr, inStr);
+        }
+        
+        return outStr;
+}