Fix various es-lint errors

src/extras/ShapeUtils.js

@@ -305,7 +305,7 @@ var ShapeUtils = {
 
 					if ( ( inSeg1Pt1.x !== inSeg2Pt1.x ) ||
 						 ( inSeg1Pt1.y !== inSeg2Pt1.y ) )		return [];	// they are distinct  points
-					return [ inSeg1Pt1 ];                 						// they are the same point
+					return [ inSeg1Pt1 ];	// they are the same point
 
 				}
 				// segment#1  is a single point

src/geometries/IcosahedronGeometry.js

@@ -34,7 +34,7 @@ function IcosahedronBufferGeometry( radius, detail ) {
 	var t = ( 1 + Math.sqrt( 5 ) ) / 2;
 
 	var vertices = [
-		- 1, t, 0,  	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
+		- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
 		 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
 		 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
 	];
@@ -43,7 +43,7 @@ function IcosahedronBufferGeometry( radius, detail ) {
 		 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
 		 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
 		 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
-		 4, 9, 5,  	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
+		 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
 	];
 
 	PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

src/materials/Material.js

@@ -162,7 +162,7 @@ Object.assign( Material.prototype, EventDispatcher.prototype, {
 		if ( this.metalness !== undefined ) data.metalness = this.metalness;
 
 		if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
-		if ( this.emissiveIntensity !== 1) data.emissiveIntensity = this.emissiveIntensity;
+		if ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;
 
 		if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
 		if ( this.shininess !== undefined ) data.shininess = this.shininess;