Version 2.1.6

Fix deprecation Identity (#134)

* fix deprecation visibility Identity

* fixup

fixes issue #115 and also pre-existing bug with sint64 and sint32; in…

…corporates idea

     from @redstar in pull #130 for backward compatibility with older dmd

     Root cause of 115 is that the used base data type for reading
     an integer is always `ulong`. Converting a (huge) value to a signed,
     possible shorter data type results in the onversion exception.

     Solution is to use the correct type. This eliminates almost all calls
     to the `std.conv.to` function.

     For sint32/sint64, this was related to an overload never being called
     because of dmd overload resolution rules regarding const vs mutable

Version 2.1.3

Version 2.1.2

Fix deprecated lookup issue

Actually fixes #100 this time

Version v2.1.0

Version v2.0.2

Version v2.0.0