Rework missing Steamworks API checks * Check more APIs that we use, rework the code to deduplicate the error messages, include more useful steps to try to fix the issue, remove obsolete tips like "ClientRegistry.blob" Fix 64bit high curtime HUD animations Turn some stuff to doubles in relation to networking * Remove CEngine::m_flFilteredTime and m_flLastRemainder (unused) Add VPROF to CLuaGamemode::CallReturns Pull some minor changes for datacache from CS:GO * CDataCacheSection::EndFrameLocking mutex NPCs ignore spectating players 64bit client and server build fully, launch, and run (using x86-64's LuaJIT) * CEF and LuaJIT remain 64bit CEF Various changes from TF2 SDK * Adds CFuncNavCost::InputToggle Hammer input * Various fixes Minor changes from x86-64 beta Restore hud_draw_fixed_reticle as alt texture for default crosshair