Merge branch 'master' into v2.1

doc/ext_ffi_semantics.html

@@ -864,7 +864,7 @@ place of a type, you'd need to use <tt>ffi.typeof("int")</tt> instead.
 <p>
 The main use for parameterized types are libraries implementing abstract
 data types
-(<a href="http://www.freelists.org/post/luajit/ffi-type-of-pointer-to,8"><span class="ext">&raquo;</span>&nbsp;example</a>),
+(<a href="https://www.freelists.org/post/luajit/ffi-type-of-pointer-to,8">example</a>),
 similar to what can be achieved with C++ template metaprogramming.
 Another use case are derived types of anonymous structs, which avoids
 pollution of the global struct namespace.