Empyrion Galactic Survival Alpha v5.4.2-ALI213

Changes / Improvements: - Anti-Griefing measure: no collision damage for ramming with vessels on PvE playfields - Added new block shape: Cylinder Bug Fixes: - Possible fix for error that occurred sometimes in relation to energy calculation and that could render a playfield unplayable until reboot / restart of playfield - Fixed problem with round blocks (gap between block and round windows) - Fixed damage stage of block shape: Hull Corner Long B