[bug] __default image has an invalid frame

[cocoademon]

Sorry to not include a pull request for this, but:

this._images['__default'].frame = new Phaser.Animation.Frame(0, 0, 32, 32, '', '');

leads to an invalid default, as the first argument to Frame() should be an index.

https://github.com/photonstorm/phaser/blob/master/src/loader/Cache.js#L180

[photonstorm]

Thanks. Also fixed in 1.0.4 - it happened in several places in that file actually, so have fixed across them all.