Add support for trigger.io

[sloops77]

This adds support for recognising trigger.io apps as WebView not a browser. To make this work at the moment the user needs to add this in a angular.run block:

window.addEventListener("load", function() {
  if (!!window.forge) {
    ionic.trigger('deviceready', {
      target: document
    });
  }
});

Reopens this PR cleaned off blurAll removal: #2667

[francisosih]

Hello @sloops77 I tried your suggestion and I haven't been able to make it work.

[sloops77]

Hi Francis, check the forum for my reply

[sloops77]

Perry,

thanks for merging. It would be good to integrate the fake 'deviceready' event code into master so people dont need to discover this issue to figure out why "it isn't working". Would you suggest adding it to platform.js directly, or would it be better to have a separate triggerio.js file in utils? The benefit of the latter is that any adapter code or phonegap event triggering can be encapsulated there.

I suppose i just convinced my help, but if i could get your ok then i'll send in the next PR this week.

[francisosih]

I would suggest adding it straight into the triggerio.js, thanks mate!

Francis