Updating copyright year and README.

examples/physics/launcher follow world.js

@@ -42,7 +42,7 @@ function create() {
     player.anchor.setTo(0.5, 0.5);
     player.body.collideWorldBounds = true;
     player.body.bounce.setTo(0.9, 0.9);
-    player.body.friction = 0.2;
+    player.body.linearDamping = 0.2;
     player.body.gravity.setTo(0, 8);
 
     // Enable input.

examples/physics/launcher follow.js

@@ -37,7 +37,7 @@ function create() {
     player.anchor.setTo(0.5, 0.5);
     player.body.collideWorldBounds = true;
     player.body.bounce.setTo(0.9, 0.9);
-    player.body.friction = 0.2;
+    player.body.linearDamping = 0.2;
 
     // Enable input.
     player.inputEnabled = true;

examples/physics/mass velocity test.js

@@ -23,7 +23,7 @@ function create() {
         s.name = 'alien' + s;
         s.body.collideWorldBounds = true;
         s.body.bounce.setTo(0.8, 0.8);
-        s.body.friction = 0;
+        s.body.linearDamping = 0;
         s.body.minVelocity.setTo(0, 0);
         s.body.velocity.setTo(10 + Math.random() * 40, 10 + Math.random() * 40);
     }