64bit PET: Mitigate random seed aligning on 4096 for child systems This caused certain particles systems to have exact same random positions between parent and child particles. Fixed Tool MdlPicker causing console warnings Set default MdlPicker output folder to game folder, not C:/ Hide "Generate Backpack Icons" button in MdlPicker Fixed "Clean Undo History" not working in PET Fixed panel/memory leak with particle picker previews Disable hack for Intel GPUs disabling SM3 Actually implement undo limit in tools (Particle Editor) Set Undo Limit for Particle Editor to 512 Play `act` animations on the server, and fill in concommand help Fill in some gmod specific convar descriptions FIxed a crash with VMTPicker (-tools)