Log Message:
Update lang/lua53 to version 5.3.5.

Lua 5.3.5 fixes all bugs listed in http://www.lua.org/bugs.html#5.3.4:

1. Wrong code generated for a 'goto' followed by a label inside an 'if'.
2. Lua crashes when building sequences with more than 2^30 elements.
3. Table length computation overflows for sequences larger than 2^31 elements.
4. Lua does not check GC when creating error messages.
5. Dead keys with nil values can stay in weak tables.
6. lua_pushcclosure should not call the garbage collector when n is zero.
7. Memory-allocation error when resizing a table can leave it in an
   inconsistent state..