[TIMOB-16941] iOS: System Info icon size is different between toolbar / toolbar and a view

Problem

When info system button is added to anything other than toolbar/navbars, it appears distorted (see attached screenshot). In the following test case, you may notice that I created two info buttons, one for view, the other for toolbar. The one added to view has ' style : Ti.UI.iPhone.SystemButton.INFO_DARK ', which seems not acceptable. But accepting it may itself be a bug. However, it is the only possible way to add info system buttons to view and this feature is quite common everywhere. I'm afraid this distortion may cause Apple rejection.

Test case

//create component instance
var self = Ti.UI.createWindow({
	backgroundColor : '#ffffff',
	tintColor : 'red'
});

var button1 = Titanium.UI.createButton({
	bottom : 64,
	left : 16,
	style : Ti.UI.iPhone.SystemButton.INFO_DARK,
});
self.add(button1);

var button2 = Titanium.UI.createButton({
	systemButton : Ti.UI.iPhone.SystemButton.INFO_DARK,
});
var toolbar = Titanium.UI.iOS.createToolbar({
	items : [button2],
	bottom : 0,
	borderTop : true,
	borderBottom : true
});
self.add(toolbar); 
self.open();