[TIMOB-1142] Videos in Photo Gallery

We need to expose videos when the openPhotoGallery method is called. Right now, only photos are exposed.

Titanium.Media.openPhotoGallery({

success:function(event)
{
    var cropRect = event.cropRect;
    var image = event.media;

    // set image view
    imageView.image = image;

    Titanium.API.info('PHOTO GALLERY SUCCESS cropRect.x ' + cropRect.x + ' cropRect.y ' + cropRect.y  + ' cropRect.height ' + cropRect.height + ' cropRect.width ' + cropRect.width);

},
cancel:function()
{

},
error:function(error)
{
},
allowImageEditing:true,

});