add hitTestEdgeInsets property for making the hit area larger than the default hit area

[Sashke]

if you want to make the hit area larger, you must use negative numbers

[button setHitTestEdgeInsets:UIEdgeInsetsMake(-10, -10, -10, -10)];

[mrcrow]

@Sashke , I don't think this is worth to add in the repo, could you please provide me a case?

[Sashke]

Look at round buttons in Yahoo News Digest app. It have larger hit area then it appears. Without it many users with big fingers misses when pressing it. Sorry for my english