Reworked clientside lerping

Now acts as a rubberbanding effect. The result is that movement is now considered correct and adjusted towards the real position if not rather than cautiously moving towards the predicted position.

- version g4.13pre

Fixed local copies of items not respecting their Amount value

- version 4.12.0

- this is version 4.11.3

- this is 4.11.2

- this is version 4.11.1

fix DSDHacked state creation.

Several problems here:

* the crucial call did not override 'mustexist'.
* once created an extended stare would not be looked at anymore.
* extended states received no usage flags.

fix DSDHacked state creation.

Several problems here:

* the crucial call did not override 'mustexist'.
* once created an extended stare would not be looked at anymore.
* extended states received no usage flags.