did somone have the knowdlege is new Raspberry Pi 2 is compatibile with Xenomai RTOS? 

In old version (Raspberry 1) that was a path which make berry to work with Xenomai.
I was started reading about second version about possibility to port old application written for Raspberry 1 with Xenomai to v.2.


Question: Where can I find the source code for Dungeon Defenders?
Answer: You can find the optional DLC where the source code is located here, or you can find it under the DLC tab in the store page.

Now you can find the source code located at \Steam\steamapps\common\dungeon defenders\Development\Src\


  \Development\Src\: This contains all the gameplay source code for Dungeon Defenders (in UnrealScript, which you can learn through the Unreal Developer Network). It's located here for Mod coding &amp; reference purposes in particular.


Source