Sparrow SPTween utility functions return value change

Jonkel

(void)moveToX:(float)x y:(float)y;
(void)scaleTo:(float)scale;
(void)fadeTo:(float)alpha;

//returns self

(id)moveToX:(float)x y:(float)y;
(id)scaleTo:(float)scale;
(id)fadeTo:(float)alpha;

This way, you don't need a lot of lines for every tween

Made a timeline to be able to add batches of tweens, and now I see that it would be really useful to be able to do the following

timeline = [[SXTimeline alloc] init];

[timeline addBatch:
     [[[SPTween tweenWithTarget:self time:1.0f] moveToX:50 y:50] scaleTo:2.0f],
        etcetc,
        nil];

Also was surprised there wasn't a rotate to? That I can add in an extension, but in the other ones the functions in my extension won't be called when they only differ in return value..

(Also I would've totally branched sparrow and made it myself. But git is scary. 😃)