Update project phaser to 2.1.0

libgrabber updated project phaser to 2.1.0.

@photonstorm

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "phaser",
    "repo": "photonstorm/phaser",
    "files": {
      "basePath": "build/",
      "include": ["phaser.js", "phaser.min.js"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/phaser",
    "localVersions": ["2.0.0", "2.0.3", "2.0.4", "2.0.5", "2.0.6", "2.0.7"],
    "remoteVersions": ["0.9.1", "0.9.2", "0.9.3", "0.9.4", "0.9.5", "0.9.6", "0.9.7", "1.0.1", "1.0.2", "1.0.3", "1.0.4", "1.0.5", "1.0.6", "1.1.1", "1.1.2", "1.1.3", "1.1.4", "1.1.5", "1.1.6", "v2.0.0", "v2.0.1", "v2.0.2", "v2.0.3", "v2.0.4", "v2.0.5", "v2.0.6", "v2.0.7", "2.1.0"],
    "branchVersions": []
  },
  "version": "2.1.0",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/phaser/2.1.0",
  "branch": "phaser/2.1.0"
}
```