Beta 3. Not a lot of really noticeable changes, just more polishing.

- Made Rifle scope shader toggleable, and tweaked its visuals a bit.
- Various adjustments to vector math (using portal-aware functions).
- Adjusted the penetration mechanics of the Quadshot, should be able to better go through multiple targets now.
- Fixed incorrect state jump after zoomed rifle altfire.
- Reduced the range of the Detector (2048 → 512), it was too massive.
- [flak_m] Fixed the issue where some looping weapon sounds would get stuck if the player died or dropped the weapon.
- Corrected Gun Lore description of Flamethrower altfire.

cvarinfo.txt

@@ -86,4 +86,5 @@ server bool sting_razoraim = false;	// razorjack alt follows aim instead of
 server bool sting_biosplash = false;	// biorifle alt splashes like in ut
 server bool sting_flametspread = false;	// targets on fire spread the flames
 					// to anyone nearby (may be op)
-server bool sting_impself = false;	// disable impaler beam self-hit
+server bool sting_impself = false;	// disable impaler beam self-hit
+user bool sting_zoomshader = true;	// rifle scope shader