feat: set cancelable to false by default on Android

[RomainFallet]

To match with the iOS behavior where all modals cannot be canceled by a click outside of it (or a back button).
First of all, there is few case where it is interesting for the developper to let the user dismiss the modal by a simple click outside of the modal. And it's absolutely not user friendly, the user does not attempt to see the modal closing after this action. He can cancel it unintentionally.

Maybe a setting would be a great solution too ?

Here some testimonies of developers that have trouble with this (not only with cordova) :
jquery-archive/jquery-mobile#4727
http://stackoverflow.com/questions/23300122/prevent-phonegap-notification-navigator-popups-from-closing-from-touch-outside-o
http://programming.nullanswer.com/question/27626010
http://iswwwup.com/t/5fcbb227c8f7/javascript-prevent-kendo-tooltip-hide-close-when-clicking-outside-the-tooltip.html

[kavka3]

++

[Heshyo]

++
It's easy to tap outside of the box unintentionally. Also you may wonder what happens if you tap outside instead of clicking OK/Cancel (did I just OKed or Cancelled it?).
I'm actually already using a modified version of this plugin just to change that setCancelable part.

@RomainFallet maybe you could simply update the calls to alert, confirm, ... and add another argument isCancelable that would default to false as to not change the current behavior on Android. Maybe people don't want to merge the PR as it's not backward compatible?

[Heshyo]

I just saw #60 that actually added a setCanceledOnTouchOutside. I don't know if both setCanceled and setCanceledOnTouchOutside should be set (in my app I only use setCanceled(false) and it prevents both back button and clicking outside to close the dialog).

[roushd5]

++

[darron1217]

++
Please...

[MaxInMoon]

any news on it?

[goran-blazin]

Any news?

[janpio]

Hard conflict, so this can't be merged directly. Either @RomainFallet rebases and fixes the conflicts, or someone has to create a new PR with theses changes based on current master.

Caution: This would be a breaking, major change as it changes current behavior.