call the Froala.initialized event with proper context

[mephju]

No description provided.

[mephju]

According to https://www.froala.com/wysiwyg-editor/docs/events#initialized the event's context should be the editor itself.

Therefore I added this line of code that will properly provide the context to the event consumer:
var initEvent = ctrl.options.events.initialized.bind(ctrl.froalaEditor);

[Chreekar]

It would be easier to just change line 114 in the original code from:
initEvent && initEvent();
to
initEvent && initEvent.bind(this)();

[dadigu]

Could this be merged in please? This solves a huge pain I have to be able to get the editor on the initializedevent in order to enable/disable the editor on render in angularjs