version updated to 0.4pl3

Rev: src/version.c:1.2

src/version.c

@@ -6,5 +6,5 @@
 void f_version(INT32 args)
 {
   pop_n_elems(args);
-  push_text("Pike v0.4pl2");
+  push_text("Pike v0.4pl3");
 }