Make it possible to align checkbox to the right

I was able to achieve this with very little code change on codepen, and I think it’s quite a nice addition to the checkbox feature having item-checkbox-right and item-checkbox-left just like pretty much everything list-wise.

http://codepen.io/fredgalvao/pen/ctKwp

I could make a PR on the weekend if it’s deemed necessary, but I think this is a pretty small change and could come into tomorrow’s beta? Looking forward to this.

[prosenjit-manna]

.item-checkbox-right {
  flex-direction: row-reverse;
}

<ion-item class="item-checkbox-right">

[smorstabilini]

@111crb111 if you replace

<ion-item class="item-checkbox" ...

with

<ion-item class="item-checkbox-right" ...

it doesn’t work. But if you use <ion-checkbox> instead of <ion-item> it does work. see fredgalvao’ codepen. Hope this helps