Nightly development builds of Pak128.Sweden-Ex are now available. They should be extracted into the ~/simutrans/pak128.Sweden-Ex directory (create one if it does not exist). They can be found here:
Nightly pakset builds (http://bridgewater-brunel.me.uk/downloads/nightly/pakset/)
The nightly builds are currently using the half-height (https://github.com/VictorErik/Pak128.Sweden-Ex/tree/half-height) branch on Github.
See here (http://forum.simutrans.com/index.php?topic=15886) for more information about nightly builds of the game executable.
This is simply amazing! Thank you!!