Initialize LensFlares rotation at 0

Probably a copy-paste error - it doesn't make sense to initialize rotation to 1.0 radians. Fixes #1124.

src/objects/LensFlare.js

@@ -39,15 +39,15 @@ THREE.LensFlare.prototype.add = function ( texture, size, distance, blending, co
 	distance = Math.min( distance, Math.max( 0, distance ) );
 
 	this.lensFlares.push( {
-		texture: texture, 			// THREE.Texture
-		size: size, 				// size in pixels (-1 = use texture.width)
-		distance: distance, 		// distance (0-1) from light source (0=at light source)
-		x: 0, y: 0, z: 0,			// screen position (-1 => 1) z = 0 is in front z = 1 is back
-		scale: 1, 					// scale
-		rotation: 1, 				// rotation
-		opacity: opacity,			// opacity
-		color: color,				// color
-		blending: blending			// blending
+		texture: texture,	// THREE.Texture
+		size: size, 		// size in pixels (-1 = use texture.width)
+		distance: distance, 	// distance (0-1) from light source (0=at light source)
+		x: 0, y: 0, z: 0,	// screen position (-1 => 1) z = 0 is in front z = 1 is back
+		scale: 1, 		// scale
+		rotation: 0, 		// rotation
+		opacity: opacity,	// opacity
+		color: color,		// color
+		blending: blending	// blending
 	} );
 
 };