3DRadSpace v0.0.4a feature and bug-fix release

Features

✓ Create the FPVCamera object
✓ Added 'Fog Demo.3drsp' project
✓ Added pictures for SoundSource and Fog objects

Bug Fixes

✓ Fixed fog not working in the editor
✓ Fixed a crash when working with the Fog object
✓ Fixed crashes related with project files
✓ Fixed some bugs in the project example files
✓ Fixed an issue with the autoupdater
✓ Small optimisations in 3DRadSpacePlayer
✓ Small optimisations in the editor
✓ Fixed some regressions caused by the 0.0.3a update (a major refactoring was needed)
✓ Fixed keyboard language related issues (again, an other attempt)

Others

✓ Updated online scripting documentation
✓ Deifned the .sky used for skyboxes
✓ Objects that are not implemented are represented by a completly white/missing icon

Notices

1.) XNB Converter can only work on x64 systems
2.) Feedback is always welcome!